I think the majority are VERY happy with the update. Its a Ipad not a laptop. The multitasking does work as described. And 10.3 comes out in a couple weeks that should address the lack of printers issue. And if not there are already many apps the do.
Here Here! "It's is NOT a Lap Top" it is a bloody amazing bit of kit, and the upgrade is fine. For what it's worth I think the iPad is the beginning of the end for laptops and note books. Remember this is the first version, so as Apple learn and progress, I think this is the future of non desktop computing. just my opinion!