Until dr.who's ESLCH arrives I'll do my best to answer questions.
The ESLCH is a bit finicky to collimate but if you bear with it the rewards are great. The CO% is larger than most MNs but then this scope is geared more toward imaging. Nonetheless it provides some spectacular views.
I've had some great views of Jupiter at 311X (ES 82 4.7mm with TeleVue 2X Barlow.) I haven't used the ES 82 30mm in it yet but I expect it to be sharp most of the way to the edge. MN coma correction isn't 100% so that's not a shock. The views really are pleasing through it.
Here is a pic of the primary cell I which I put together a while back (I don't have a picture of the secondary holder handy):
My copy is a couple of years old, but here are my thoughts. First, the mirror clips were way too tight when it arrived. In fact the clips left permanent marks on the mirror. Not a big deal as the clips cover the marks they created, but there was massive pinching/astigmatism due to this. Perhaps they did it for shipping reasons, I'm not sure. What they didn't do is tell me to loosen the clips up a bit, so the first year my views through it were lousy.
Second, the springs are a bit on the soft side. Collimation wouldn't even hold when moving the scope from the counter to the mount outside. Replacing the primary springs helped greatly.
Third, the primary adjustment screws have a central grub screw used to lock them in place. Tighten them just a bit too much (and I mean a bit) and the screw in the primary cell will start backing out. You've then got to take it all apart and re-secure the screw on the primary. Some Loctite will rectify this problem but I simply chose to not use the grub screws.
Fourth, the center spot was off by several mm so my views were further compromised by this. I ended up respotting it with a Catseye Hotspot.
The trick to collimating this scope and keeping the coma-free field well centered is to throw the instructions away. Seriously, the manual that came with mine is for classic Newtonians and make no consideration for primary-corrector alignment. In a classic Newt you're primarily concerned with primary-focuser axial alignment but in an MN you are concerned with corrector-primary-focuser axial alignment. Since the corrector doesn't move, you have to align the primary to it first then modify the secondary/focuser positioning. I had to go through numerous iterations to get it right but once I did the views were very rewarding.
It's a perfect scope for widefield browsing on an alt-az mount (goes nicely on my Losmandy AZ8), planetary/lunar/solar views are excellent, and it does really well for imaging. In fact I'll have my ESLCH out on Monday on my AZ8 to share the Mercury transit with the public.