Has anyone used the Express feature at Dollar in Phoenix?

- Is it as seamless as National's? I am a National Emerald Club and love the walk up and pick your own car feature - thinking of trying out Dollar's similar service - is it similar?

- if I was selecting a convertible at Phoenix through the express feature, what would I tend to find in the Lot? Online it suggests Mustang - which is fine - I just don't want to end up with a Smart Fortwo or a 500C.