It should work ok. I've got a datavac pro which has 5cfm less (65 vs 70cfm) of the ed500. Works similarly to a can of compressed air, maybe not quite as well only because even the 'pin point' tip isn't as narrow so the pressure leaving the end is a bit less. Still works pretty well considering. Compressed air cans only work so well so neither are perfect, the nice thing about the datavac is not having to buy the cans and not chancing blowing liquid onto parts from the condensation that builds up with canned air.
I'm not seeing the 5 star available as Phillip mentioned, maybe it's out of stock or discontinued on the regular amazon.com site. Other inexpensive 4 packs seem to run around $20, the datavac ed500 can be had for around $60...