i was on this pill on & off for about 8 years (and yep, i'm pretty sure it is the same as dianette in the uk cos that's what i was on when i lived there). i stopped taking it earlier this year and i didn't have any problems with my skin. in fact, i still got the occasional pimple before AF when on the bcp but didn't seem to get that once i came off.

my first real AF was 28 days after i finished the pill (i was amazed because my AF had always been very irregular) and then went to 32-35 days (but only had 3 cycles before i fell PG). it was probably slightly heavier than when on the pill but no major difference & not really any longer. in fact, i was concerned that i wouldn't be able to fall PG because my AF was really only lasting for 3 days.

as for a change in mood, i don't think so - altho i think my sex drive actually increased around ovulation but i dunno whether that was just because we were TTC!

hth