Pros:
At license tier 1 you get unlimited users and unlimited domains. Not only that, you can use the tool to track up to 20 competitors per domains, so I think it's fair to say that this is a real bargain. The keyword research tool is feature rich and very intuitive to use. White label reports are handy for a small agency servicing a bunch of different clients.

Cons:
The number of daily tracked keywords is a little bit on the low side.
Not a 100% replacement for SEMrush, because at this point you can't use it to do backlinks research on your competitors.