On my g300 even mid-range 2d games will eat up RAM and start pushing other cached apps out of memory, when you quit there is a noticeable delay while it reloads things. And I'm running GB.
View a large webpage or start multi tasking and there's a risk your launcher will get pushed.
You could probably get away with it, and from a blade it will be like night and day but it is still something to consider and not just FUD.
I got it for £55 at Tesco and it's great on Gingerbread, it's basically an incredibly stable ROM with no issues at all. Snappy enough for most tasks, a bit let down by only 512MB RAM but you still can't beat it for <£100.
Build quality isn't great, but a few quid for a case and you're sorted.