IMHO it's quite lightweight. Detection wise, well it's rat race in the AV field so running a 100 samples for comparison doesn't really prove much (but of course I'll expect a 95% detection at least!) lol.
Thanks for the update.
How much ever they improve, if they do not provide an improvised mechanism for quarantining and whitelisting the once-unquarantined files, it won't be convenient for normal users.
It's protection was average when I tested it twice against samples (two months ago). Will like to retry it sometime soon.