I've been using Protection Racket cases, but they're hard to get at the moment so I tried out this Tama bag in 14x14 and 16x16. The drums don't fit properly inside. I reckon my 16" floor tom would sit inside the 14x14 case. Loads of room, and the drum doens't feel protected.
When I have drums inside other cases I feel confident that they are secured, but with these cases not so much. They do offer some protection, but not enough, and I'm disappointed with it in general.
They don't stand up properly when empty, so you need to lift the sides of the case to get the drum inside. The zip is durable, but not the smoothest opening.
Overall :-/