I love this and so does the neighborhood framily. Purchased to use at my daughters birthday party. It has been a big hit since we opened it. The product had been used several weeks prior to the party and during the course of the party. Children from 3 to 8 used it during the party as well as the 20 - 30 year olds. At 40+years myself, this has been fun to use. My daughter at 4 loves it, and I have no problem allowing her to play with it when ever I'm able to supervise. We have not had any splatter or paint mishaps and it is simple to clean. I purchased large bottles of tempera pain and some large squeeze bottles for additional colors. The little bottles are re-fillable, but I have not done so myself since I purchased large bottles. The paper is an odd shape, however I cut extra paper from old scrapbook pads of patterns I wont use. Further, I purchased this product because another individual posted you can use 5x7 paper which was my primary reason to buy. I purchased heavy card stock for the party and cut to 5x7. It works great, however the splash guard does not work with the 5x7 paper. This was not a big deal for me as I simply placed it in a card board box that I coved with wrapping paper to match the party décor (attached pictures reflect the build up of paint on the inside of the box without the splash guard after hours of use). It's low velocity so paint does not fly everywhere and in the box worked perfect. Since this purchase I've had the neighbor kids over for spin art and they enjoyed it so much the parents have purchased a spin machine for their kids as well. This one is battery operated so I feel like my daughter can focus more on her artwork than pumping to keep the machine in motion. The machine is plastic, light weight and the splash guard is a clear plastic ring that sits on top. Again we have never had any paint splash outside of the unit. Super easy to use and so happy I got it. This has been one of the best purchases in a long time and a lot cheaper than majority of her toys.