To Brave the Storm did suffer from being heavily cut back - it was originally going to be two longer books.
I'd say it benefited from it personally. I found the first Romulan War book really tedious, but found To Brave the Storm reasonably engaging; it managed to continue most of the many threads without labouring them.
Sadly I wouldn't put any of the post-TV Enterprise books in my favourite-Trek pile though; I've found them all rather mediocre. Which is a real shame as I was a big fan of the TV series.
To Brave the Storm seemed like a pretty definite ending to the series to me. So I'm curious to see where it goes next. If it goes anywhere at all.