Review on LitterLocker Refill Litter Locker Plus by Chelsea Hunter

If you haven't done the math, this single pack is actually cheaper than buying 5 packs (which total $8.40 each). I've used the litter box on my pugs for years when their poo gets soft or runny after they've been cleaned outside. Simply throw the poop bag into the LL bag. I turn the knob once or twice a day. I have it right next to the front door and it never smells. The bag seems to last a long time the way I use it. I also like it because it's a very simple system. No batteries or complicated mechanics. After you change the filler the first time, it will be easier to do it next time. I suppose there are also guides with pictures on the internet that helps. What I'm not sure about is the difference between the original Litter Locker and LL plus. They look exactly the same and pick up the same mines. Does anyone know if there is a real difference between the two and if so what is it? I found LL Plus on sale for about $12 at a local pet store that wanted to get rid of it.