The new Ilion bushy's are in general a fine rifle. Bought a carbine a few months ago and it shoots just as accurately as my older Bushy's. Reliability is just as good as well.
Where I notice the difference is in the finish. The lowers are a hard coat anodize, not mil-spec phosphate. Same with the uppers. The barrel finish is also a less expensive finish. Not sure what it is, but it is not as nice or as durable as the older finish.
Factory triggers still suck. But they always did. This was a mandatory upgrade for all my bushy's.
So final conclusion. The new bushy's are still good. The finish will not be as durable. If you are in the market for an AR15 rifle, Bushy's would be a fine choice. I'd put them head to head with DPMS, RockRiver and other similarly priced rifles. Choice being price point and what features each company offered.
Still would prefer a Noveske or LWRC or BCM. But you do pay a higher price for these high end rifles. They are worth the money but cost more.

Hope this helps.