I am an Ooni lover, I had an original one which was wood fired, which we then sold for a Koda which is gas fired. We sold the wood fired one because of the faffing required, fine if you have guests and are cooking up 20 pizzas, not great in winter when you just want to feed the family. The gas Koda is quick and easy to setup, very controllable so therefore consistent and just a huge amount less faff. We use the gas one weekly (Wednesdays) year round, even in the snow. The wood one was summer only and only on special occasions due to the faff. There is no real taste difference between the two 90 seconds is not long enough to get any flavours from the wood. Ooni do have 20% sales at various times of the year and you can often find deals elsewhere. If you don't already have gas bottles remember to add in the additional cost of setup.
If you have any specific questions just shout or check out the Ooni website.