After a year and a half of having the MileagePlus Explorer Credit Card, it is a scam. It took an extra 4 months and several calls to get my initial points in the first place, and when I recently went online to try and redeem my $460 worth of award points, it was not possible at all.
I tried to redeem them for gift cards of all sorts - the errors that occurred could not be resolved because there was no department in place to handle them. So then I tried to book a rental car - only a reservation was made and no points were used for the car payment. So then I tried to buy an electronic device with an additional $50 of my own only to have my own money STOLEN - the additional $50 was withdrawn from my personal account but the device purchase was never completed and I was never able to get it, OR MY OWN MONEY BACK. I then thought oh-well I can book an upcoming flight - NOPE. It only allows 25K of points to be used on each flight before you have to pay additional money out of pocket. Is this a joke? These points are not real!
Total scam when it comes to point redemption. BEWARE. Do not get this card!
Bottom Line: No, I would not recommend this to a friend