One of the benefits of using pex is you need fewer connections. This saves on cost. You can run it like copper pipe, and then you need just as many. Sometimes, you don't have a choice. I'd prefer a path that didn't need as many fittings, but other than cost, should be okay. Each fitting adds more restriction which also might mean the calculations on the size needed might no longer apply. A continuous run, because it is smoother is said can be done with smaller pipe in pex vs copper. Throw in a bunch of fittings, and that probably no longer applies. they may notice flow problems if it was sized for the smaller pipe without all of the fittings, depending on how overboard they went.