I saw little pieces of it before, and as an Oz fan I twitched and avoided it. But Kathleen watched the beginning of it and felt it showed promise, so we decided to take a chance and get it.
Contrary to my original impression, despite all the drastic outward changes, this is a very "Ozzy" story in many ways. It's an ADULT story -- that is, it hasn't got the innocent and overly-shiny polish on it that the original books did, targeted as they were to children around 10 or so -- but it's still very much of the right SPIRIT. This contrasts markedly with things like Farmer's "A Barnstormer in Oz" and Maguire's "Wicked", which completely miss the POINT, as far as I'm concerned, or -- worse -- deliberately twisting it around in the sort of way I find most painful.
Instead, "Tin Man" gives us an Oz struck, many years after we knew it, with disaster, of a particularly Ozzy sort, and needing to be rescued -- in a way that parallels the original story, of course. But not so closely that we can know everything that happens.
It's a VERY clever show, well crafted, well paced, well acted, with tributes and nods to both the classic movie AND to the original written novels (one particularly nice point is that when we get a glimpse of the original Dorothy, she's wearing the SILVER (not ruby) Slippers.
Also, as Kathleen pointed out, it was essentially CLEAN. Unlike most Sci-Fi channel offerings, there wasn't really anything in it that we couldn't let our 12 year old watch if we wanted. The biggest piece of fanservice amounted to a push-up bra that didn't reveal any more than you are likely to see during any summer day anywhere in the U.S. There was almost no bad language, either.
The actors playing the parts that paralleled the original Scarecrow, Cowardly Lion, and Tin Man were *AMAZING*. While these were in many ways very different characters, the actors carefully wove in mannerisms, expressions, and movements that were taken directly from their respective actors in the classic Wizard of Oz movie (Ray Bolger, Burt Lahr, and Jack Haley).
Overall, an excellent piece of work. I'm glad I've seen it.