2017 CPO plus extended warranty offer
 

I just took possession of a w205 2017 c300 w/7k miles. It came with a 5 year unlimited mile warranty from its date of inservice (12/2016). I was offered 2 additional years/unlimited miles @ $2500.

I've read through a few of the threads on here and noticed there were some people I could contact at other dealerships, but wanted to get a group consensus on this. Is this a good deal offered? Is this a good value driving ~20k/yr? I tend to lean away from extended warranties (this one included).

They told me if I didn't buy it right then that I would have to pay a 15% penalty if I bought it later. This later changed after I declined to allow me an additional 30 days to reconsider. Thoughts?