I use the Litter Locker and mostly like it. There are two things I don't care for. One is that the refills can be a little tough to find and are around $9 a pop. The other is that there's a little catch on the turny thing and when you let the baggy get to full it gets caught on the catch and rips.

Otherwise it's fine. No litterbox odors and it parks by the litterbox nicely. Just scoop, dump, and turn. The secret to making the refill last a good long while is to not do a full turn.