Benefits:
Super efficient, thereby you have to completely change it very often. have now completely changed time after 3 months, but would it even longer can be in it.
Super suitable for litter boxes with strainer!
Large very solid lump, even the big business it is very good in the odor.
Disadvantages:
Very expensive, although you can get over the good by the spreading rate. So not really real disadvantage. ;-)
Very difficult, the weight in purchasing and disposal. My mailman I'm always really sorry because I order usually 2 bags (to save the shipping cost) online. :-)
Tip:
Leave it once in addition to filter in the week by a large Sandkastensieb even the smallest lumps. An old disused salad or pasta strainer is also good.