Are Enhancement Shaman viable spec for PvE & PvP in Wotlk 3.3.5 ?

Hello guys I would like to ask, Are Enhancement Shaman viable spec for PvE & PvP in Wotlk 3.3.5 ?

I play on Icecrown realm and I have not seen many Enhancment Shamans at all, but they seems a lot of fun.

I like to play fighter style characters like Warriors, Retri Paladins ETC, I don't like casters, so If go for a shaman it will be Enhacement only. The thing is that I don't want to waste time on a class the is not usefull for raids and PvP, I don't care if I'm not with the top DPSers in the charts, but I want to be usefull.

So are they in demand for PvE and PvP ? What do they bring for the raids (like spells and talents) ?

enhancements in pvp are kinda viable in bg's, its ultimately hard/imbalaced in 2v2.

as for pve, shamans were always preferred cus of bloodlust. Tho raid leaders most prefere restoration's, but they don't turn down enh's if they need mdps and shaman.
If you really don't care for dps, then shaman may fit, but you know, every raid leader will take dps into account, and if they have shaman alrdy( for example icc25) then they will think twice before taking you into raid.

I have a shaman with all pvp specs(bis) and enh pve spec(almost bis) and I can say that enh is the most fun spec to play with but its pretty nerfed in wotlk.