First of all I do not believe on all the positive comments at all looks live they are giving it just for the sake of writing a review without experience.
Grabmore is just a way to keep your money till you are fed up cancel the order and they will make you wait for another month to get your money back if you try.
So save yourself a bunch of trouble no matter how attractive the price looks. And if you thing to buy anyway just choose cash COD option. They will lure you to pay now with a discount but dont fall into that trap.