Newer DM800HD clones are generally good boxes...do some reading around different forums etc..as well as this one.
There are however well known issues with tuners in the clones meaning you can end up with breakup and "tune failed" on a lot of the HD channels. Some people have managed to fix this with a 20db in line amplifier.
I bought a clone about a month ago, Motherboard Rev J, Tuner L3, SIM 2.01. Stuck latest version of DreamElite on it...and I was impressed...very nice image indeed..best i've seen from the boxes i've had a play with...(mostly Enigma 1 based).
BUT I did have issues with breakup and "tune failed" on some SD and HD channels. A 20Db booster fixed almost all mt HD channels but messed up some SD channels. Currently my tuner has been shipped back to supplier for a replacement...
On the whole they are good solid devices, you wont find a better specced device with the same range of good software images and support for the same money as a clone...Just be aware..that there are issues with the tuners..
Do suppliers change these tuners for free or is it an extra?
That is the only thing that has put me off. I would prefer to get one of these rather than getting a spiderbox, but if it is going to be alot of hassle and extra expense i may give it a miss.
Spiderbox only real plus is the "GIFT" which I hear doesnt run that well anyway...