I am on the verge of buying a new TL and want to know from current owners why I shouldn't buy this car.

very good point. just want to emphasis that. otherwise a tl is a very good choice

you should buy a used model. you lose to much value right after you drive it off the lot. acuras though have great consumer reports ratings and are very reliable cars. you can find a 2005 with very low miles for a much better price.