Adco was very helpful. I called them up and although I Imp does not have a warranty they said they would upgrade it to the champ for a small fee. I sent the Imp sight in and within 5 day I had my new Champ sight with a 5 year warranty. There costumer service was great. The Champ is a lot stronger and with the 5-year warranty I would definitely get the Champ.
Battery lasts a long time actually, the one that came with it died fast tho.
Far as price goes LOL its hella cheap for a sight. M has 1.5 power. Well theres not much variation to the red dot site. Field of vision is decent, only thing better would be a square site. Battery life hasnt been a prob either.