Does anyone know if this is a decent monitor? Dell UltraSharp U2211H 21.5" I want it specifically for my latest model 15.4" MBP. I do web design and dev and want matte screen, which I believe this is. Also the ppi is at 102.46, which is right where I want it. However, I'm lost when it comes to aspect ratios; this one is 16:9, but I have the hi-res MBP and not sure what the ratio on that is. Also, if going to a monitor with a different resolution than the native on the mbp is a problem, or if that even matters... Wondering how this one compares to the dell 2209WA, which has gotten great reviews on this forum.