This was my first time using a grout pen. It worked as intended. You can definitely see the difference from before. It took me a second to get the hang of using the pen, as far as shaking it, dabbing it, and then gliding it. Im an impatient person. I wore through the tip pretty easily. The seller was kind enough to send me replacement tips for no extra charge with a reminder of how to best use the product. From there, it was smooth sailing. I do wish that flow of ink was more consistent; thered be times when it would flow like an uncontrollable river and then other times where I had to dab and press to get the smallest amount out. In those moments, I thought the pen was dry...until the uncontrollable river would yet again flow. I guess im saying that its hard to know when the pen is actually dry. To grout seal my master bath floor, shower, upstairs bath floor, and laundry room, I ended up buying 4-5 of these pens. It adds up, but theres not much you can do about it. And its a good product. It did what I wanted it to do. I bought one last pen to have for touchups.

I like the way the pens work initially but the points wear down and fray very fast. Then you can’t get them into the grout space between the tile

I found it very easy to use and it instantly refreshes old grout lines to look like new! I used this on our white tiled kitchen counters and island, the area that gets the most discolored from food. I used to use white paint with a small paint brush to refresh the grout in the kitchen, but that would take time and start to peel off and not last that long. If chunks of grout actually came out (rare), I assume Id need to mix some grout and fill it with that, but for discolored tile, I just quickly use this on top of my old discolored grout lines, and its fantastic, I would buy this again for my needs. it probably helps that the tile is white too, but if i go over the grout line onto the tile, it easily comes off the tile. I just got this pen, so i couldnt review the longevity or easy to remove yet. I also dont know how this would work in the shower where water gets on it all the time, our shower tiles dont have white grout and arent discolored. But for the kitchen with white tile and white grout, its so far ideal!

Here is a picture of a small section I’ve done on my bathroom wall. You can see it makes a pretty big difference. This is just 1 coat and it did soak into the grout pretty well. I went out of the lines onto the tile a little, so I let it dry and then wiped it off with a wet wash cloth. It came right off of the tile but stayed put in the grout, so I’m hoping once you let it really soak in well it’ll stay even after washing the wall with cleaner. The pen has the be shaken and depressed every few minutes, so that’s a bit of a pain but it works just a Sharpie paint marker. My bathroom is pretty small and I’m eager to see how much just 1 pen covers. I’ll likely buy again.

I wore the nub out before it was empty but I may have just been using it wrong. Impressed. Did a way better job than I expected. Recommend if you diy

I like this product it works really well on the grout; however, it’s a little pricey for how much area it does

I was using it to clean up the grout lines in my bathroom, and it started off great and I thought I love this product! but then 10 minutes (if that) into the project the tips just started fraying and it was soon unusable.

I was tired of looking at the greyed grout in my bathroom and I was hoping this would perk them up without the time and effort re-caulking would take, and it worked. It looks good. It was quick and easy to use and it has brightened up the walls. It feels clean and fresh again, without a painstaking full on caulk project. Now to address some of the negative comment made by others: For the tiles with cracked or missing pieces of caulk, they needed to be re-caulked. This pen was made to stick to existing caulk, it is not to be used to patch a crack or a hole, it really wont do the trick. The pen tip does get frayed but you can pull it out and turn it around and use the other side. It is not a super fine tip, so you may color outside the lines. This is not a big deal. Once it is dry, a straight razor blade will clean the edges quickly and neatly, It wont take long at all. I dont think the pen is a long term fix for high traffic areas, like the floor, the tiles that get hit constantly during a shower, or a counter top that gets cleaned multiple times a day. Those should be re-done with proper caulking. But I am very happy with the look of my refreshed bathroom and how little effort it took to get it.

very very bright white, if your tiles aren’t super bright white it might look a little off, but honestly a great quick fix. it isn’t as precise as i’d like, especially if your grout lines aren’t perfect or vary in depth/thickness, but overall easy to use and worked as described

This little pen is great! I have an old tub and I rent so Im not able to redo the tub and tile. This pen renewed the old stained, mildew colored grossness that was my tub. Its not perfect, but now I can step into my shower without feeling like something is going to come alive and eat me( seriously, my tub was stained black from bad caulk and mildew. One downside of the pen, you do have to press the tip down to get the paint flowing every so often, especially when doing tile above your head. Definitely listen to the instructions and make sure the area is clean and dry or it wont stick to the grout as well. It is really easy to get off of tile if youre messy like me and cant stay in an straight line if your life depended on it. Im getting another one to do the kitchen grout too because some genius put white ceramic tiles in the main entrance to the house.