i've enjoyed it for a few weeks with DB's, starting with a normal press then pushing outward to the reverse position at the top of the press. it most certainly does work the upper pectorals more than any other exercise i have tried. i have serious rotator cuff tendinitis, and regular incline bench pressing is almost undo-able with heavy weights because of the pain. i am able to perform this at the lowest "incline" setting on an adjustable bench. but considering that "incline" pressing only activates 5% more of the upper pectorals, it's not really that big of a deal. from what i have read in the article, the reverse grip stimulates more like 25% of the upper pec. so if you are like me and have shoulder issues on the incline, doing these DB style on a very low level incline adjustable bench is perfect for helping to develop the upper pecs more.
i don't use a lot of weight with these either mind you, my first pressing movement is decline DB (again for shoulder issues) and i max out with 130LB dbs, hit flies, then come back to the reverse grip incline DB and only use about 60LB DB's and still get a fantastic burn from them.