I may be wrong here but I thought one of the first round of improvements was on the cosmetic side to deal with the problems you mention.
Performance wise I suppose the one to ask would be Gary as he did have the new mods.
The new machine does look more profesionally built, especially the coils, which did look prone to break in the past but then the old ones were made of some wonder material that was both tough and expensive.
The improved performance was not just down to the twin coil design that had been used twenty odd years ago but to accuracy in construction. I can't rember if it was Gary or Georgi I spoke to but there was a very high rejection rate on the coils... if they were not up to spec. then they got binned.
It would be interesting to know if the coil material has changed for speed of production and a lower spec. is being accepted.
Refreshing to hear your views. The problem is that those who do have the machines up for sale, like the SE on one of the British forums at the moment, are not likely to dwell on any short comings.