I heavily researched building an outdoor wood fired oven but in the end I ended up going the professional route because I live in a harsh weather area and I wanted a long term piece of "yard art" that wouldn't be ugly... and believe me there are some ugly home builts out there:
https://www.youtube.com/watch?v=ifwHbaIThRcPizza, ironically, is not even in my top 5 favorite meals- important to remember that it is an outdoor oven that I cook basically "anything that roasts" on. Some of the negatives stated above are actually positives in my book. I enjoy cooking, futzing with the fire, being around an open flame... it compliments my outdoor kitchen and it is the center of attention in my outdoor space. Yes, it was very non mustashian but a skill set I wanted to master ever since I saw my first outdoor oven in Italy a decade earlier.
For holidays, it becomes the extra oven where I make most of my sides etc. From prime rib to stuffed pork chops to planked fish everything that comes out of the oven just tastes better.