Citycell is providing their internet service using CDMA2000 1X which is based on CDMA technology. CDMA technology is comparatively better than GSM, it has a stable connectivity with good average speed. Althogh EDGE from GSM family provides more speed theoretically, in real scenario it does not prove that.
Citicell ZOOM package charge is given below

Based on the speed they are offering and customer satisfaction, I think its good for moderate users like ourselves. I'm also using a ZOOM and so far I'm getting good average speed.