I started raiding as a ret pala in TBC, got it to 80 in WotlK :P (yes that long:P)
In Wrath I started playing warcraft more and more, and eventually got a ferm faceroll dps spot in a guild that cleared icc10 waaay before cata.
I enjoyed playing ret in LK, however it wasn't challenging at all... I put my attacks ascending from good to less good on the numbers 123456890, 1 being the top attack.
Often I just dpsed, just rolling my finger aroud these buttons and often looking away and still doing top or 2nd dps (no the guild wasn't bad, and i couldn't beat DK with shadowmourne).
Now we arrived in cataclysm and good god was I horrible with the rotation, it took me a good 2 weeks to perfect my playingstyle in hc's.
Sure on dummy I can do perfect rotation but in hc;'s it was different... I realized I missed the experience that other players had from vanilla/TBC where you had to move from stuff and don't take damage.
I managed to get my rotation going while working the meachanics of the bosses, yes grim batol cleared while doing average group damage and staying alive
.
After these 2 week and some I had my first guild raid on past wednesday, and about equally geared with others in my guild. and I'm pleased with how ret plays in it.
We got omnitron to 25% and i was 2nd on dps while being constant on 10... ofc everybody can gear up even further and much may change.
Conclusion: I liked how the ret spec became very difficult for me and costed me lots of focus in order to get myself raid ready... now I am done I can say I like playing this, unpredictable rotation and environment.
It requires much more focus and is more interactive/rewarding than it was in wotlk, I like it very much.
Maybe retribution just requires more commitment to get it under control.
Greets Peloponnesus
(yes that cool)