No, most make up excuses for not using space suits, because they are inconvenient for the story teller.
Star Trek, Star Wars, B5, Andromeda, BattleStar Galactica, Alien Series, Star Gate, Halo-
All dominate the Scifi Medium as the most popular to date: granted none of these started as novels, but thats hardly an issue, they all have tons of novels now, and none have space suits constantly being worn, or even worn during combat. Space suits are for very special occasions, or a ridiculous last resort. All of them accept that in space being able to breate the extra 3 hours isn't too important if you were blown off the ship and are drifting away anyways. All of them utilize sealing doors, shields, or some such for general safety purposes.
There are of course tons of novels that don't have space suits generally worn as well; its just that the Better and grittier ones deal with less advanced societies that do wear them for general safety... which given that in Sins our ships have anti-matter and shields they do not quite fit into the super realistic branch of scifi.
All the shields and sealing doors authors use (if they bother to) are simply conventions to get around the issue, nobody wants to read that the two heroine's of the story try to kiss in the middle of their fantasic battle and bump into each other's face plates. As a result the big bulky suits are done away with until they seem to bring about more drama rather than inconvenience it. Authors who work around this by having the suits anyways deserve special credit but they are hardly the norm.
And you still have no way of knowing if they use them consistently in Sins. 10$ says if we get a little CGI video of a TEC crew in battle they won't be in space suits Ron