I should add the complaints I have read (mostly Amazon reviews on older models) were: issues with igintors, oven doors sticking shut and poor customer service.

From what I've read on here, most of those issues are in the past.

However, you should look at Capital too.

I started using a bluestar a month ago and absolutely love it

I cannot afford a platinum so I only got the RCS (latest revision).

One thing I have heard though, if you are a frequent griddle user, the thermostat griddle on the RNB is a lot better than the platinum interchangeable one

IMO, the infrared broiler in the oven would eliminate my need of a charbroiler on top for my purpose (searing steak and salmon)

I've had mine almost three years and absolutely love my 36" RNB. I also think the "portable griddle" on the Platinum would not perform like a true built in, and would be a deal breaker for me. I would seriously suggest the RNB if griddling is a priority for you.

Otherwise, no complaints, and happy cooking to you!