Rogues are pretty much fine in Pve , the raiding rogues i have spoken with say their only complaints with the class is that one Tier is only for pvp on the talent grid, overall boring talents, Stealth not being "fun" in a raiding situation.
A lot of people still like their rogues but of that group most are pure raiders those that have complaints about the class are usually from the pvp crowd. Sub is very clunky and a lot of people dont like how it plays currently and has played in Mop in pvp ( having to maintain Slice and dice + a bleed always, positional requirement on backstab, getting shutdown during Dance) A lot of juggling involved with that spec never liked it.