The Platinum Plus plan is different from the 3 plans listed on the Coach Net home page.
This is what mine looks like. Perhaps this coverage is only available through a dealer. It appears the Assist America is the only coverage I do not have on the Platinum Plus plan. This is only offered in the Premier Coach plan. I have all the other coverages offered in Coach Net's best plan.
Sign onto your online plan and check the My Benefits link (left side of page) to see what benefits you have at present. This will perhaps help you to decide what to do for renewal. It seems the renewal deal you have been offered is very good. personally I would pick the 2 year plan from your insurance company.