3 nights in Cappadocia?

[Human]

A couple of years ago my wife and I had a 3-night stopover in Istanbul which we loved. While we were there, a number of locals recommended Cappadocia to us. We're planning another trip to Europe next year and once again are planning a stopover in Istanbul, and we're wondering whether we should include a 3-night (ish) stay in Cappadocia.

My thinking at this point is that we'll fly into Istanbul, spend 2-3 nights there, fly to one of the airports in Cappadocia, spend maybe 3 nights there, and then fly from there to western Europe via Istanbul (it looks like reward seats on Turkish Airlines are fairly easy to come by).

I know nothing about the area and I'm not inclined to DIY or hire a car. So preferably I'd like to go on a tour and/or use a travel agent for that part of the trip.

So ... does anyone have any recommendations? This is a very broad question, I know! I'm looking for advice about...

• Is a diversion to Cappadocia worth it at all? Is it as lovely a region and worth visiting as we've been led to believe?
• If so, could anyone recommend a 2-3 day guided tour (small group) and/or a knowledgeable inbound travel agency to get in contact with?
• Anything else? (I don't know what I don't know!). Feel free to put in your 2c worth if you don't think I'm on the right track...

Thanks in advance.