It depends upon who you talk to.
Atlas/Polar seems to have a decent contract.
The International seems to be paying a lot of attention to and putting a lot of resources into RAH. The Frontier side of RAH is pretty ticked, but there is a lot of infighting going on there.
Omni is disappointed, to say the least, in what I consider to be a shockingly poor contract, however the pilots did ratify it so they have nobody to blame but themselves.
The Cape Air guy who posted above sounds disappointed as well.
IBT has a lot of resources. However, and this is true of any union: more depends on the quality of the leadership at the local level and the involvement of the rank-and-file than on any umbrella group (such as IBT or ALPA) under which the local union may fall.