Never read that before. I did all my homework before I bought my ISC, checked reviews, mechanics (I know a few that work at my local Lexus dealer), forums, etc. These cars were consistent 4 outta 5 for reliability and owners loved them. There are some years that had more issues then others, that's to be expected tho. One of the main issues I was concerned about was the reliability of the retractable hardtop, the micro switches might go bad, that problem was rare tho. I've had this car for going on 4yrs in Feb, not one problem, put damn near 25K on it in that time, I don't drive it in winter months and I stay up on the maintenance.
Even though Lexus' are luxury Toyotas, which are known to last, it was the RX 350 and LS 400, 430, ES 350, GS 350..they were the ones said to last 200k miles or more with just typical maintenance.