Overall, it was a cute episode. I was a little annoyed with the Roomies drama (this was supposed to be a Luby episode, after all), but I've waited seven years for this, so I can't be too irked.
I thought it was very realistic for a wedding, with people getting drunk (Dubenko, Frank), starting fights (Ray, Gates), and Abby being annoyed that Luka got a chance to practice his vows. Loved the look on both of their faces when they saw they were going to be married by a rabbi. Cute how he started with "Today you become a man...oops, wrong page. I did a Bar Mitzvah this morning."
And Neela's "I went to the market to buy beef, but the man was not there so I got fish." So wedding-appropriate!