My only slight concern would be Lowa's use of those suede panels which run along both sides at the bottom of the boot and I think also on the tongue. For whatever reason Lowa seem to have used those suede panels for colour contrast effect rather than concentrating on the better performance nubuck would give if it was used in every panel. My guess would be that suede is probably easier to dye and accepts brighter colours better than nubuck but to me suede is a lower quality and lower performing material than nubuck.
I have these and my advice is just to bite the bullet and wax them. I found the nubuck and suede absorb water after offering up just a little initial resistance. The Goretex liner in mine is lasting OK so far but obviously that's just a matter of time. It ruins the nubuck visuals but IMO it's worth it. You could just wait until the Goretex fails before going down the wax route if the looks and breathability are more important than waterproofing.
Because it's not full-grain leather, even waxing won't produce a properly waterproof surface so I follow the advice I found on the Lowa site of using a waterproofing spray (I have some Grangers Repel for footwear) whilst they're damp (supposedly the drying action makes it penetrate deeper). Dry them properly. Then wax. They still absorb water more than I'd like but it doesn't go as deep and so the boots stay lighter and dry quicker.
Another point of weakness is the tongue bellows which is fabric. So this needs the repellent spray too.
Overall I'm fairly happy with mine given these limitations. They're no 3 season bog trotters but they're a decent middle-ground between fabric and full-grain boots, and they score highly in the comfort stakes.