As a retired Honda mechanic, I hate the H22 with a passion

It has a hydraulic and a auto tensioner for the timing belt - why do you need two friggin tensioners?

Wiring harness going over the motor makes simple jobs on other honda motors a pita

Balance shafts

The sheer fucking size of the engine makes it a bitch to work on

Pistons made of glass

Sleeves with FRM = annoying to put pistons in

Cable shift trans.

Everything that you love about the B and D series motors the H series simply is the opposite of.