Im looking to purchase a 37m waitzinger boom pump. Just wanted to know peoples thoughts or expericance with them.

Thanks

Waitzingers are more commonly known as Reed pumps here in the US. You'll likely get a lot more response if you rephrase your question to ask about a "37m REED" 

 They're good machines in my opinion. I ran one briefly when the XXT models first came out here in the States. It was a roll & fold XXT37 with the "Dragonfly" outriggers. I'm thinking that they'll evolve into even better machines since being bought out by Leibherr.