It's growing on me. I've learned not to play at the line to avoid interceptions. If you can get decent kicks to touch, it helps as your kick chase is a bit poor. It's pretty attritional, defend-complete-defend and wait for a error. I've scored a handful of decent tries, but rely mainly on opposition errors - dropped balls and (especially) interceptions. I've frustratingly lost quite a few games very narrowly (on rookie level), but as I'm playing as Hull KR mk2012 that in itself is pretty realistic.
If I can master the grubber kick I think I might do a lot better.
Holding down in the tackle is well worth while to get your line set, and the ref gives you a warning.
There are a few glitches - not registering your pass, then chucking it forward when you try again as mentioned above. Your tackle command turning into an unwanted grubber, on a sudden and unexpected interception, also.
Overall - I'd say 6.5/10. 7 making allowances.
If Amateur level was any sort of challenge or rookie was a bit easier, with the next level were rookie is it'd be better. I suspect I'll never go up to 'veteran' or 'professional' (I think that's what they're called), given that rookie is pretty draining.