Yes, staple part of my session. Main reason is actually for flexibility work which I don't do enough of. I don't go hard at it it's more of a warmup movement.
If I was focused on strength I wouldn't worry about it as the other heavy movements I'd do would be enough for those muscles.
Sport specific training like hockey for example? Mandatory to hit them somehow, this machine is fine at med intensity and volume as you'd best be doing a few training movements that hit them already.
Bodybuilding? Hugely undertrained bodyparts in the past, them yoga pants chickies seem to have woken up the big boys a bit tho.
The Adductors can take high volume IME which is great because when I do them I'm always scared of pulling something, going heavy seems sketchy, tendons seem undersized. Maybe just my opinion after seeing tons of hockey players getting twinges way up deep there.
I guess I'm getting off track here a bit as you were asking about the machine not the muscle groups but man they can just add so much volume and detail when full. Take a close look at where so much of the size in Tom Platz's legs is might be the best example