I have this and the Harbor Freight Icon. Each has its strengths and weaknesses. I actually keep both in my Veto TP-XXL bag for getting out of those annoying little jams.
I think the case is the real magic of the tool check plus. I wish they sold just the empty case. I actually have more use for cheaper impact rated bits and sockets for my purposes. If the case was cheap, I'd probably throw a set of Makita/Milwaukee impact sockets and bits into the case and be better served for way cheaper and easily replaced. As it is, I can't bring myself to break up the set because of how expensive they are.
The icon has a really neat and useful little ratchet/extension with magnet. I did break this set up and added the Makita impact bits to this one. So I grab it quite often.