Another forum member, Suzie, purchased the 2.1 and is happy with it, other than she had to get a new saddle.
I purchased the 5.2 and love it. I had to get a new stem and handlebars and my bike is now a really good fit. I've biked just under 800 miles on my Pilot so far this year, meaning the last 2 1/2 months. It is a wonderful bike.
Good for you for getting a great bike. Post a photo when you have it.
Darcy