what do you mean ping times aren't important? They're always important... you'll see what i mean if/when you use one..
i highly recommend you have them give you a demonstration of the service and use it normally... since you looking for service for 12 remote sites they will probably give you maybe a week free somewhere for you to evaluate it... I'd recommend you take it, latency is as important as bandwidth... if you actually want things to load when click on them/request web page/whatever, then latency is alot more important than bandwidth.
Whats the use for these connections?