Just my 2 Cents
few parameters as per my understanding you need to check before you go with a 4G provider:
Coverage : As per this Dialog has the better 4G coverage over 50% (population) and also rapidly expanding their service to outer areas as well.
Experience :
Speed : better than both SLT and Lanka Bell ; guaranteed 4Mbps but Most areas over 10Mbps Average , I think they are upgrading their network /expanding. Cuz I got only 11Mbps on AVG , but now I'm getting 20+Mbps.
(comparativlily Lanakbell is giving snail phase - its like 7.2 dongle ,
Ping /Latency - minimum ,even good for low latency Gaming as well .
Pls chk gamer,.lk -
http://gamer.lk/index.php?topic=28890.0
Service - is much better than SLT and LB , only problem is the Call Centre ,some time you need to hang over 10 mins to get an agent.