The Master replicas models have been pretty fantastic, with the exception of the nautilus bent tail sections which are quite fixable.
My understanding is that Unobtanium decided to cut back on the construction design and engineering in the Enterprise model for cost reasons.
The only problem with the newest Enterprise coming out is that it seems from what MR posted with the likes of the Vader helmet, their track record sucks lately. Master Replicas has made a lot of mistakes this year and you have to wonder what changed to make those mistakes occur.
Lets hope that they emphasize quality and control for this model as its delicate enough that such QC is a must. MR's other models have maitained a great quality, I think they will do so on this one as well if they have learned anything from their latest QC standards from other projects flopping up so badly.