Look, and this goes for everyone giving me grief here: If it worked like crap, why the HELL would I not just say so? What's in it for me to LIE about it? Look at my signature - it's not like I can't afford higher-end Macs and thus am doing a sour-grapes routine to make myself feel better. I own what you see there PLUS a 2012 iMac and MBA (removed those from signature since it was getting too long and they're no longer my "main" desktop/laptop combo). I don't need to post a freaking activity monitor screenshot. I can simply tell you I've been using it with multiple Chrome tabs, GIMP, GarageBand, MS Office (including PowerPoints with TONS of animations, many simultaneous), QuickTime, etc. without ever feeling like it was choking or even starting too. Now, I don't normally do all those things at the same time (no need to), but I have done a FEW of those things at the same time and experience no perceivable issues. I guess maybe it helps that it has an SSD for memory swapping or something. I don't really know nor care what it's doing in the background because it just works.
That will be my final comment on the matter.