I, having tested them exhaustively the same week they landed on our shelves, will say they are an excellent bullet if you use them as intended…at long range.
To date, I have tested them in 6.5mm 129g and 142g out of 2 cartridges, being the 6.5x47 Lapua and the 264WM custom throated fast twist. The 7mm 168g and 175g in 7STW. The 30 210g out of 300WM and 300 RUM. The 33 in 285g out of the 338-06, 338WM and 338-416 Rigby Improved 45° and 338 Edge.
Have not had one fail, all animals hit with them have died right now, the only animal that appeared not at all phased by an impact was a large Red deer stag, no reaction to the first hit although there was blood spurting out each side of the animal, the second shot dropped him right there and that was that. Hit was ranged at 880 metres.
Of all the hits, in all cals/weights tested, the closest hit was at roughly 470 metres but was a steep downhill shot in New Zealand with the 129g out of my 6.5x47. Muzzle velocity was just under 2800fps from the 30" barrel.
If you are hunting long range, have tested seating depth, they like a bit of jump, then I would recommend them. They are finicky if you don't test seating depth, this is why many rubbish them and don't test them adequately and get toted as poor groupers, which simply doesn't matter that much for hunting, as long as the first shot is on the money each time…
Cheers.