In rural KP, where previously one could only get Jazz 900 MHz 2G, they have refarmed some of it for 3G.
Speed is like 2-3 Mbps on speed test, but compared to 2G, it works perfectly. Just the right amount of speed you need to stay connected without getting frustrated that it takes 30+ seconds for one WhatsApp message to send.
Has very good and stable indoor coverage as well with occasional fallbacks to 2G that can be avoided by forcing the phone to 3G only mode.
Also noticed that Bani Gala, Barakahu, PN Farms, Bahria Enclave and other surrounding areas of Islamabad are still on 15 MHz of B3 for LTE whereas within Islamabad, the beginning of the motorway and the Airport all have B3 (20 MHz) + B8 (3 MHz) CA for LTE.
With all that being said, Jazz really needs to consider shutting off 2G in big cities, or at least certain parts of big cities, or leave it running on any excess 1800 MHz spectrum that is too small to be used for LTE.
900 MHz is being wasted on 2G.