Normally, we would recommend that once you put water on that joint the first time, then the only proper repair is to take it completely apart.
Given how hard this job was, and it it is in a spot that won't flood grandma's bedroom if it leaks, I would be inclined to leave it, but keep a close eye on it.
I am sure some guys will recommend having a plumber come in and redo the whole thing. That would certainly be the "best" thing to do. Sometimes in life, you take a deep breath and put you money down on 00 hope for the best. Everything is a crap shoot!