u can use any service providers sim cards..with any data plan..gives good speed on 2g/3g both...good functionality..use can check ur remaining data balance by dialing number & u may also dial as well receive d calls...u can prefix d amount of data to use ...just go for it..good in price & works well...

i bought this product before one year from flipkart.as flipkart delivers at very fast speed.though i got it in 2 days..as i am using this product,initialisation takes some time but after initiation it has a very nice speed and after long using it not heat up...overall this product is awesome

I had ordered it using flipkart and recieved on 5th day of order in nicely packed box. The device is awesome.
Pros:
1. Light weight
2. Works with Linux o/s as well as windows(I tested it both on Ubuntu and Windows 8)
3. Gives maximum possible speed
4. Compatible with almost all sims(I have personally used it with vodafone, Ides, Airtel, BSNL). Works fine
Cons:
1. In 3g mode gets heated up lot after 30 min of usage or more.(However performance remains same).
2. Installing the software on linux...

Really value for money product . NO issues .Have used different sims(cellone , idea, docomo) connections are pretty fast and there is no sudden disconnections(provided the network is strong).
gets heated up while using 3g. all in all a really good product. Recommended

I mainly wanted a dongle to use when I am travelling.
This dongle almost fulfills my needs. Gives decent browsing and downloading speed with most service providers. The wi-fi is solid strong, very good strength.

The best feature is you can receive calls and do SMSes. that makes it very useful.

There are some heating issues, gets hot after prolong use.

I recommend this.

Again good service from flipkart.:) And am using this dongle from past 6 months and happy to order it. U can use any 2g or 3g sim in this dongle nd it works awsome. Happy again from flipkart..:)

Good one. Have not encountered any problems. If you are looking at buying this one , i would suggest go for it . It works satisfactorily

Its a really good product . and works well in windows 8 but the only problem is WiFi doesn't work properly.....

a very good product by Huawei. Any of you thinking to buy it can buy it without any second thought.
It jst takes time to install and works all fine on Windoes 8,8.1 Os.

Everything just fine, good speed, easy to use.. Ui is great to and you can disable the option of auto open homepage too (which is great and isn't available in lot of data cards including micromax).
Two small cons is

1. USSD check is available in setting option while should have been in call section. (Nothing much to worry about though)
2. Takes a hell lot of time to load application, extremely ridiculous, Almost 1-2 Min. (Else that I would have given full 5 star)