Make sure its the orange ZTE modem, it's pretty good and fast but very very cheap, safcom is fast but toooooo expensive. If you use the orange huawei 3G get ready for headaches, especially if you need to be online seamlessly, but orange3G+ (ZTE) is good.

i use their 3G+ which runs on CDMA. Speeds not as great as Safcom but, hey, the cost is just wonderful 4G @ 2.2k a month is enough even for a serious "downloader"

The speed you experience with data is a function of two things: 1. The network capability of your network provider 2. The device/dongle/modem capability. If two users are in the same network, using two different devices, the user with higher device capability will have faster speeds. If say you use a 4G modem, in a 3G network, under exactly similar conditions with a 3G modem user in the same 3G cell, the 4G modem user experiences much higher speeds than the 3G user since 4G has superior modulation schemes and standard MIMO (Multiple Input Multiple Output) features. Similarly two 3G modem users experience different throughputs in the same cell accessing the same content because one modem could be MIMO enabled when another is on MISO (Multiple Input Single Output) or even worse SISO (Single Input Single Output). Generally for laymen (and women alike), the higher the cost of the modem, the higher the capability. So you buy the 9,999/- modem, it will beat hands down the 2,999/- modem under similar network conditions.