Hi Jim,
In my opinion the Mewlon 210 is one of the best buys in the Tak line. There are some compromises but it's almost half the price of the M250 and only 40 mm smaller.
As for the views I will say "refracter like with spikes"
The construction is beautiful. It's also one of the nicest looking telescopes I have ever seen. At 8" its very light and does't require a major mount.
The focuser is my only complaint (well there is my major complaint regarding internet support from the manufacturer regarding all Takahashi products. You'll find a better site from the manufacturer of gumball machines) Opps sorry about the rant. Well back to the focuser. I see Kent has upgraded to a Tak focuser and I know Gary has also added an after market focuser. Mirror shift isn't really bad as far I can tell but it's just not sensitive enough especially for any kind of CCD work.
As far as the scope being condition sensitive I have also experienced this and have heard that this is common with 10" scopes (anyone seeing this with the 250). Maybe the M210 thinks it's 10" scope. Gary have you noticed this on your 180.
Cool down was a little longer then I had expected for an open system but I think that it's due to the Mirror mass. About an hour coming from inside my home.
I highly recommend these scopes and would like to hear from anyone who was ever disappointed by the views, quality, or value of these scopes. The lack of a decent site from the manufacturer is more then adequately handled by fellow Amarters, TNR, Anacortes staff, and the Yahoo users group. Thanks guys
John