Typically International Association of Machinists (IAM) contracts look good (to union members) in the high-light sheets passed around before a contract vote for the membership and in the press releases, but lose their gloss when the actual contract books are published and distributed to the membership. So far the press releases make it sound like a good deal, but the devil tends to be in the small print. In the past UAL have negotiated impressive contracts, only to take concessions immediately after signing. Hopefully the IAM will pass out full contracts to the membership to read before they vote.
If this all works out as advertised by the IAM, well then, good for the UAL union members, the IAM has finally learned their lesson about representing their members.