There are a lot of times I think companies who make alternative GW stuff have such good quality they should be able to do their own thing. That said I'm sure a fair bit of that opinion is because I have no love of the "heroic" scale.
Orks however tend to be some of the best exceptions to that not least of all because the greenskins are some of GWs most generic products and also their bulk suits the scale and looks fine up against realistically proportioned human miniatures.