I have a trigger 7 pro 92 and a 90TM. I got both to A/B them and found the following for me:
1. the 90tm is better for stick handling
2. the 92 is better for backhands
3. the 90tm is more accurate
4. the 92 can get shots higher than i want them more often than the 90tm
now, this is just me and others may have completely different results.
the main thing that really works out for me with the 90tm is the flat section on the bottom and the 5 lie. for my style of play that works best.
and to answer your question, it's not hard at all. my main shot is mid/low blocker or glove and I find it as easy to hit as it is with the pm9 which I used for 15ish years
I spent a ton of time online comparing the 92 and 90TM, looking at forums, watching youtube videos and tbh I said screw it I need to decide for myself. that's why I got 1 of each. 90TM wins for me.