Yes, first time I heard about Ace Whizard was here, but they have been around for about 20+ years (I think) and lots of people ( 1000s???) have buit these as their first plane - and there seems to be hundreds of them flying now as well. So it seems to me.

If you have your plans and balsa you can probably produce all bits in the kit in one day - the only trickier bit is landing gear to bent... But kits are cheap anyway...