[asterisk-biz] Anyone worked with EXGN IAX VoIP service?

[chip at innovates.com]

I've been exploring DID providers that support Asterisk.  EXGN 
(http://www.exgn.net) seems to have nice packages with really good 
rates.  

Anyone have a long term experience with them?  Have they been around 
long?

I just signed up for an account and every thing seems really good right 
now, but my concern is if they have the experience to be reliable for 
the long term.

Cheers!

Chip Schweiss