While browsing through the internet I came accross this forum post in Pak Geeks site. This person seems to be an early adopter and has this to say about the service.

PTCL EVDO Review
i bought ptcls evdo service on Monday and my device was “authenticated” today. This post is going to be a review of ptcls service and i will compare it to my previous ISP wateen.

The basic requirement for now is a laptop with a pcmcia slot, IMO this is a stupid decision by ptcl pcmcia slots are on their way out and virtually no new laptop bought nowadays comes with one.
The sign up process was very simple all i needed was a copy of a NIC and nothing else signing up for the service literally took me abt 20 mins, but even though u can get the device quickly theres a problem you have to bug ptcl again and again to get ur device activated for me this process took abt 2 days. As for the customer support i havent had a encouter with them yet so cant say anything.
Speed is amazing though it varies with timings usually around peak hours my speed drops to between 512k and 1mbit but during off-peak hours like in the afternoon i get near 2mbit speed havent tested in the night so cant say about that.
A great thing is that each user gets a unique ip so theres no problem in forwarding ports in fact there is no need for it, since its a direct connection to the internet all the ports are forwarded.

Another user some way down the thread notices this

Around 15 days back before going to Islamabad, I used to get average 2.4 and bursts to 2.8Mbits frequently. But since I have come back, speed is considerably slow, and especially today (Sunday), it is not going up 1.2Mbits.
As for the traceroute, it gives Timeout errors on client side, but I tried an internet back trace route, and there is nothing special about it, except that after Karachi PIE server – RWP PIE Server and then Lahore PIE server, the rest time out.

As we noted in our previous post PTCL EvDO (Broadband on the Go) Rates and Subscription details people have shown issues regarding only the availability of PCMCIA device and no USB. PTCL needs to act fast to get this hurdle removed.

Original thread can be found here