well, i don't think you are recieving the type of response you were expecting, now- did you? The fact that Lexus owners did not try to convince you to keep your car even though you are not pleased, shows the maturity of the true members of this site. It also proves we do not believe this car is the best thing since tang, and the reason we love our cars so much is because it fits us perfectly.
now, with that being said, to answer your question about breaking your lease, I do not know how long the term is, nor do I have much knowledge on the subject, but I do know a lease is a binding legal contract, and by ending it early, you are costing the lender profit. Logically that means breaking the lease would mean major penalties, it will be a big hit, you may have to pay up to half the remainder of the lease or maybe more. It is not a wise decision monetarily-wise, but if it will make you happy and you think being satisfied is more important that saving a few dollars, (which I think you do, you did, after all, buy a Lexus) then by all means, follow your heart. Happiness cannot be measured in gold. If you can transfer the lease without losing too much (keep in mind when you return the car, it is used and the dealer will have to compensate) then it would be all the better, good luck.