I can't say anything about the optics because I purchased the LX850 mount only. I purchased it almost exactly two years ago.
My experience is colored by 1) my accident in the first day of attempted use, in which I inflicted damage to the mount (but not the Starlock); 2) living at a site that affords clear dark skies only occasionally; and 3) the fact that I set this up every time I use it -- puting the onus on me to get it properly leveled and aligned each time.
I sent the mount to Mexico twice to fix the self-inflicted damage, and paid a hefty fee for repair along with significant shipping costs. Of course, these costs, or at least the first back-and-forth, are reasonably borne by me because it was my fault. But when it came back a second time with severe issues, Meade replaced it with a new mount. A strike against Meade's technical repair capability but strongly in favor of Meade's customer service!
The physical damage issues obscured an issue with the StarLock that was present out-of-the-box, though it took a while to determine this. Meade also replaced this under warranty, a second strike in favor of Meade's customer service.
Resolving those issues took 14 months, at which point I essentially had an as-new kit. Mechanically, it seems to be working superbly. However, to this date I cannot say for sure the StarLock is performing as advertised. It offers many signs it is operating correctly, but I continue to see accumulating drift during an imaging session when my expectation is that auto-guiding should nullify this. Despite the amount of time that has elapsed since receiving the as-new equipment (about 10 months) I cannot say for certain this isn't operator error; however, I am approaching that point of clarity.
Finally, I strongly recommend that you look closely at posts by OzAndrewJ on this site. He owns the LX600, I think, but that mount shares many features with the LX850. He has identified bugs in Meade's code, and reported those bugs to Meade a long time ago, yet there has been no evidence that Meade intends to fix those bugs. The Starlock and LX850 firmware have not been updated at all in the past two years, despite these known bugs. This speaks a lot about their support intentions, and is a major strike against Meade, in my opinion. It highly relevant to your concern about having "an issue with the electronics in a few years". That situation _may_ already be present.
In sum, it seems uncertain that Meade's technical capability is strong, though their customer service has stood by their product, so far, for me.
Edited by johnpane, 08 January 2017 - 06:34 PM.