I've had my 2007 Unlimited Sahara for almost 2 weeks and it totally rocks and I haven't even been able to take the top off yet. I am impressed by the drive, the low noise and it looks great. I am looking forward to some muddy adventures and for the day when the weather gets better and I can take the top off.
For me, it's all about having a convertible that is usable - for that, there is no comparison with the the 2007 Wrangler Unlimited. And, it's very smooth for a Jeep.