Re: Pulsar n 550
I've got one, and really like it. As far as reliability I've never had an issue with mine. I believe people use to have them "white out" after some recoil, but I think the manufacture fixed that problem with the chip set.
Ruggedness. It's a pretty robust unit, and seems solid so I would assume it's pretty rugged.
I believe it to be one of the most user friendly devices available. You can use it day & night, no tube to mess up, multiple reticles come preloaded on the unit, 1 shot zeroing (havent used yet), and is less than half a PVS 14.
I think for hunting it's perfect. It's not a PVS 14, but it's priced right, but if you're just going to be hunting I think it's the perfect fit.
Give Ceylon a call. He owns Delta Outdoorsman, and is pretty well loved around here. He'll shoot you straight, give you plenty of advice, and a good price.