Cancelled the appointment. The more I drive the rx300 the better it seems to get. Low end power can back first. Still had some trouble during "kick down" getting in interstate. I think it was just hitting the rev limiter. Later took it back to interstate, slammed the accelerator down and it took off. Climbed all the way to 100mph and shifted smooth and drive great. Might keep it now. Only other issue is the clicking in the AC. I added regigerant with oil but clicking is still there.