Is anyone using Bosco for Internet?

They look to be a subsidary of Mercury Energy that supplies power/internet/phone to some apartment buildings
in Auckland

They have a 512kbps synchronous data plan (Ezynet Plus), without caps, for $65/mo.

I'm trying to find out what sort of connection it is (direct IP or NAT'd) and whether they use any type of data management/proxies. Also curious to see if they have a decent pipe within NZ and internationally.

The customer service seems very tech-simple, so I'm not getting much useful info from them.