My son is a qualified Toyota service advisor and he works with both Toyota and Lexus vehicles. He is telling me what to write as I type this.
Good Points
Solid build quality.
Good ride.
Good value inrespect of equipment levels, equal to most BMW or Mercedes specs for less money.
Low servicing costs.
3 year 60,000 mile warranty if buying new with balance transferrable to new owner if sold within that time.
Bad points
Not great fuel economy, depends on driving style.
Many suffer from head gasket problems if not looked after correctly, many high milage ex-fleet vehicles suffer this.
Heavy on tyres, especially rears.
Check for uneven front tyre wear which can indicate front lower arm bushes wearing as they can be prone to this.
Hope this helps