Pros: Nice snug fit on the toilet
Cons: No cons
The baby Bjorn Toilet Trainer is such an excellent transition to the "big" potty.
It is made of scratch resistant plastic that is smooth and comfortable for your child to sit on.
The greatest feature is that it has an easy to use dial to adjust how it fits your toilet and get it very secure so your child feels safe sitting on it.
It also has a little loop at the top of seat to make it easy to hang up near your toilet on a hook.
It has a small guard on the front which is easy for a toddler to hold onto for stability and also prevents splashing out for those little ones with less than perfect aim.
A little side benefit is that it is small enough that the entire seat can be placed into the dishwasher to sterilize well. I'd recommend the top rack lying flat due to the softer plastic that the loop to hang it up by is made of.
I also found this a quick item to sell in a garage sale when the last child had finished learning how to use the toilet.