I've had my HS(with navigation/backup camera) for just over a month now. Really enjoying all of the tech and the luxury features I missed on my 08 Accord - like the reverse down mirrors and backup camera. Some like it and some don't, but I really like the look and style of it. I have got 3 compliments and several "look at that new Lexus". I am getting on average 35.3 mpg, just as promised. I'm glad I switched to the only dedicated lux hybrid in the market.
MPG, tech, puddle lights, push-start, XM Nav Traffic, styling, 18" wheels, memory seats & key settings, great sound (even without the ML), auto dimming mirrors in/out. Oh, and I love only having to use regular unleaded fuel :) Perfect size. Roomy - plenty of room, but not a boat.
More upfront storage room (doors, center counsol, glove box) would be nice. Maybe having the lighted door sills standard on the Prem model.