I've been using it for a few days now and so far it appears like a stable router on its first firmware release, much more stable then Netgear R6300 was when it first came out. I didn't update it to the beta firmware, will wait for the final release. Bandwidth wise and range wise it falls just a bit short from Netgear R6300. Perhaps Dlink will improve it with firmware? Although, 2.4 Ghz band handles a bit better then Netgear R6300 in congested area, I don't have as many dropouts.
I do like the cylindrical design