Magoosh GMAT videos

The videos are very helpful especially when you are traveling to work etc , you can just listen on your phone. Helps lay a strong foundation.

The practice questions are also good. However, I found Magoosh useful to build only my basics and get 600+ on practice tests. Magoosh alone was not enough for advanced quant.

After Magoosh I had to use MGMAT to further strengthen my quant. Of course since I had already gone through all the Magoosh videos studying MGMAT was much easier.

I definitely recommend Magoosh to help with the basics and also the ease of use is very appealing. However, Magoosh alone is not enough if you want to cross 700
If they can add more advanced lessons it will be much more helpful.