I purchased a brand new IS300h Executive in August 2014. Initially I loved it but the more I drove it the more I felt it wasn’t as nice a drive as a previous generation IS250 SE-L I’d had. Performance was a bit one dimensional, ie a bit all or nothing and the relationship between accelerator and forward motion was very non-linear. The sound was awful too, at least in comparison with the V6.
I decided to swap the IS300H for a same generation IS250 F-Sport with premium nav and ML audio. The car was much nicer to drive in terms of enjoyment but I was disappointed with the performance and realised over the course of six months that the IS300H had more performance than a same generation IS250. I also found the F-Sport to be a little too firm on the road for me. In my younger days I’m sure I’d have loved it mind.
I swapped to a Jaguar XF 3.0 D S Portfolio and all was well with the world. I then suffered some reliability issues and visited the dealership too much for my liking. I missed Lexus reliability and the ownership experience.
Since then I’ve had a 2015 IS200T Sport, a 2014 NX300H, a 2019 IS300H Sport and now a 2016 NX300H.
There are still times when I miss a bit of performance but my driving has changed and I definitely get hybrids now much more than I did back in 2014. For refinement they can’t be beaten.
I agree that it is essential to drive as many different versions as you can and make your own own mind up based on your own wants and needs.
If I was in the market for an IS now I would hunt down the best 2nd generation late model IS I could find, say a 2012 model, and go for this. I would however test this back to back with a 3rd generation IS250 Executive or Luxury. I’d likely steer clear of an F-Sport but I’d be intrigued to try a Premier although this does have 18” wheels. The sweet spot for a 3rd generation IS is 17” wheels I think, if you want some level of comfort.
I do believe the 3rd generation IS handles considerably better than a 2nd generation IS. The former is more ‘sport’ oriented, the latter more ‘comfort’ oriented.
just my own opinions though. Good luck with your search 👍