It sucks . Downloading speed on UC browser is pathetic 200-300 kbps average sometimes 1-2 Mbps.
My Jio network gives better speed than this
500-600 kbps average all day long.
If you are going for GtpL dont buy their higher plans and always go for unlimited plans. 6 Mbps is decent beacuse its unlimited
At 50Mbps connection the downloading speed is supposed to be around 6MBps but in this connection its not like what they say.
[ You can see the downloading speed in the given image and time also]