Ufone is overcrowded and I had a bad experience with them in Ramzan, though staff is courteous, but their CS is very very slow, may be it was due to Ramzan.
I have tried tethering with Mobilink 3G and also Ufone 3G, but they are even slower than EDGE and despite purchasing a bundle Ufone continued to eat up balance. Tried different buckets but somehow could not understand the science.
Finally ordered Zhong 4G wifi device via Daraz.pk. Same rate as at Zong, no shipping charges, so I will have it on my desk in few days instead of burning precious petrol and hunting parking spaces. 