I also have the little Viper 2-7X32. It is one of my favorite scopes. I have packed it all over, and killed this deer with it at 335 yards:
Optically it has a very nice image with great resolution and good contrast. The optical performance is similar to the VX-3 line from Leupold. It is a tough little scope that over several years of hard use has not shifted zero at all. tracking is excellent, and I have even used it for dialing solutions.
My 2-7X32 Viper has the Dead Hold BDC reticle which is my favorite BDC reticle as it is subtended in fractions of MOA at max power and is easy to get your drops matched. Like Luke, I really like the mag bar for magnification changes.
I have shot it to 600 yards and further upon occasion, and find 7x sufficient magnification at those ranges.
Vortex discontinued the little Viper, but one online retailer still has some available (unfortunately that retailer doesn't sponsor Rokslide, but they should!)
The little Viper is a stellar value, and a top choice with a priority on weight. The Meostar does best it optically, but is more expensive and heavier.
Zeiss used to make a 2.5-8 Conquest, which was a great scope, and I see a similar model is coming from them, that looks really similar to the discontinued Conquest.