said by OldCableGuy3 :Yep, Spark built areas are amazing on Sprint. I live in Cedar Rapids which is Spark and my Sprint service is amazing. Travel to Coralville, which has not been touched as part of the Spark roll out and it's like a trip to the stone age with speed tests of 0.1k.
Spark isn't in Cedar Rapids. They don't have any 850mhz spectrum in Linn County and very little 2.5Ghz, possibly not enough to even be useable. Most of the 2.5Ghz spectrum is owned/licensed by SpeedConnect.
They have the normal 1900mhz LTE, which seems to work pretty well. But that is probably because they don't seem to have many customers in the area. I would guess they have less subscribers than any of their competitors (USCC, Verizon, At&t, iWireless). If there wasn't so much competition in Cedar Rapids, I think things would be very different. 5x5 LTE isn't much capacity and they don't seem to have a lot of options to expand. They have even less LTE spectrum that USCC, though it is unclear if USCC is using their 700 band 12 A block yet because of past interference concerns with KGAN.