I run Unity on a netbook with 1GB of ram - and since all I run is vim, chrome and a few terminals, I don't see any problems. But, your mileage may vary
Yes, some people have no problems. But the performance issues with Unity on 11.04 are well known and wide spread.
FWIW, all I usually have running is Thunderbird, Instantbird, Firefox and some terminals, and since switching back to classic I haven't had any performance issues.
FWIW, all I usually have running is Thunderbird, Instantbird, Firefox and some terminals, and since switching back to classic I haven't had any performance issues.