yes it should be good quality, lazerer are a well known and trusted company. from the reviews you can see that they are all overspec and it shoudl last just about forever as long as you take good care of it and strictly follow the duty cycle.
I have dealed with lazerer before so i can vouch for them, shipping to me took only 4days (to the UK) and that wasnt the paid EMS etc. i think you should just go for the lazerer one, its cheaper, more power and better looking (in my opinion).
also as a side note, before you buy a laser i think you should get some good goggles to protect your eyes, a reflection from a 200-300mw laser will give permanant damage before your blink relex can kick in. lazerer has some for a cheap price, but if you want to go the extra mile and ensure good protection then check out the eagle pairs on survival lasers, but make sure you get the right goggles for the right wavelength
and dont worry about the questions, if noone told you how can you know right. ask away, better to be called a noob than to be blind or something