I only gave the Betta Log 4 stars because our Betta Fish doesn't seem to use it. I like the looks of it, and I like that it is small enough to fit nicely in his small tank. From the reviews I read, other Betta Fish seem to really like the log....maybe over time ours will start to use it. I did purchase the Betta Leaf and that has had better results -- I often find him lying on that.
ProsLiked the looks and size.
ConsThe log has little air holes on the top of the log -- I did not like that the edges of the holes (on the inside of the log) were very rough. Easily fixed with a knife (to knock off any protruding bits) and a bit of sand paper to smooth everything out.