For what purpose(s), where? "ISP_Name.net" looks good to me, but I'm an old-timer in the U.S. Consumers are less familiar with ".net", for branding & marketing purposes.
For a VPN or RDP service?
Given what "VPN" is an abbreviation for, I'd say "still good".
But I'm an old corporate IT guy - so assume that I don't know squat about any consumer / branding / marketing angles to this.
Well...how do I get in with your kind of people? 'Cause they're the kind of customers I want!