I replaced the plastic "toy" toilet in our previous RV with a Thetford Aqua Magic Style Plus (with Water Saver sprayer) porcelain bowl toilet in 2008. When we bought our current RV in 2013 that had another plastic toilet, I swapped the Style Plus with it. The only "repair" its had with full time use is a replacement bowl flush gasket, about a 20 minute job. I also used a new base gasket when installing it in our current RV of course. We really like the easy clean porcelain bowl and the standard residential seat.