I haven't used 1.1.x since 1.9.x first became available. Why? Because 1.1.x is a steaming pile, harkening to the days of StarOffice 5.x. Kudos to Sun for opening it up and offering a free suite, but StarOffice and OpenOffice 1.x.x were spaghetti code, plain and simple.
Office 1.9.x (aka 2.0) could stand for some code reorganization/cleanup (especially file I/O), but it's far, far better than 1.1.x was, is now usable by ANYONE, and is a real threat to Microsoft's dominance in the marketplace.