Is the Thinkdiag any good ?

I am looking for a new car diagnostic tool and the Thinkdiag seems to be a very popular tool across the internet but i wanted to see if anyone here has one so that i can get some honest feedback on the code reading abilities and special functions on land rover vehicles.

* I understand that it is a two or three year subscription, it is just a capabilities and feedback i am not sure of.

What motor do you need it for, if L322 have a look at bmw inpa software