I bought this IS used just recently with over 100k miles. Great car so far, overall build quality is impeccable. However, there are some cheap interior pieces that have no business in a Lexus. Interior room is snug, but not entirely uncomfortable (I'm only 5'9" and 160 lbs). My R32 probably shares the same interior volume, but feels more open and luxurious (for a VW of course). The combination of an I6 and RWD just works wonders for handling and stability. Don't know why the automakers are abandoning this concept, save BMW. The 5 speed manual works great, clutch work is buttery smooth. This car serves as a great performance substitute to my 08 R32.
Manual transmission, well balanced (perfect combo of the 2JZ and RWD), Toyota quality and reliability, headlights and fogs (the yellow actually looks great with the white exterior).
More power, a 6th gear, and larger interior volume (although the 2nd gen IS addressed these issues).