Thats a great model. I have sold many of them. I am the Viewsonic partner for Utah. Have been for over 10 years now. The G is the graphics series. Thier mid range product line. The E series is entry level. The P the pro series. All and all they are built the same. Quality does not seperate the series. Just features do. Refresh rates, etc. I sell more of the E series because of the price and they are good for all around use. The G is always bought by my Engineer and CAD people. The photographers and commercial artist like the apperature grille models in the P series. You can put any model of Viewsonic next to what looks like a really nice monitor of equal features and the Viewsonic will always have a better image. That is one of my best sales tactics.
Bottom line....you can't go wrong with any of the Viewsonic product. They have held the number 1 spot in the monitor industry for many years.
One exception. This years P220F and P225F have had some manufacturing issues. I would not recommend those to anyone at this time. Unless you like sending an 85# monitor back and forth.
I am not the cheapest source, since my focus is on local business rather then internet sales. But your welcome to check them out at my company anyway