My MSI A5000 laptop with T3100 C2D dual-core Celeron is a decent performer.
I can happily stand to use my C-60 Acer Aspire One 722 Netbook.
OTOH, I have difficulty putting up with my E-350 rigs. Perhaps it's the SSD installed, or perhaps, it's the particular drivers?
My Gateway Slimline with a Sandy Bridge Pentium G630 seemed alright, until my internet radio started skipping, whenever I scrolled the screen. It has an NV GT430 installed.