Any time you see phrases like "an excellent psychological choice against booked-up juniors", you can usually be sure the opening is not good. Usually phrases like that are just fancier ways of saying "I'm scared of playing good, theoretical lines and can't be bothered to learn theory, so I'll just play something crappy and hope that they'll play poorly also!"
As I see your FIDE rating is above 1900, there's no reason you should be playing this kind of stuff.
I thought I would offer some thoughts. I think it is important not to throw moves like 1.h4!? under the bus. Saying it doesn't control the centre, loses a move for no reason etc is too simplistic. As well all know, Chess isn't that simple. The Desprez Opening has two key advantages in my view.
1. It has a psychological advantage. It puts Black on his own resources immediately. There is very little theory on it and I would say it is an excellent psychological choice against booked-up juniors.
2. People often comment that White's king has no good future, but I would say it puts questions to Black on what to do with his king as much as it does White's.
So I have similar views to Michael Reyes - but with the point 1.h4 doesn't necessarily lead to tactical skirmishes. Of course Michael would be the foremost expert on it given he plays it exclusively.
The Hungarian player, Gabor Kadas played it regularly with a lot of success. Of the 28 games I have of his in Megabase, he only lost 3 games and this was against many players 2300+! So this can leave no doubt the move has some merit.
So I think saying the opening is plain bad or losing is just not correct IMO.
Here is a game I recently played with it - much more of a strategic nature rather than tactical. The interesting thing is the h4 pawn never moved but it was always lurking ;-)
Enjoy!
Macdonald,Paul - Sharma,Akshay [A00]
Friendly Match (2), 05.02.2016