The acting and effects can be erratic, to say the least, but some of the stories are not bad. Star Trek Continues has the sets duplicated so well that you’d think they came from Paramount’s storage. And I like most of the actors on that series better than some of the others. James Cawley in particular on ST NV and Phase II tries to “Shatner” his way through many scenes.
I watched “Come What May” from The new Voyagers and found it somewhat…lacking. Put me off of watching the other ones.
Also watched “The Savage Empire” in Starship Exeter. I thought it captured the “feel” of TOS very well. Trouble was, it captured the feel of one of the poorer episodes. But it seemed to have potential.
I’ve seen most, if not all, of them, and enjoyed them. Some are better than others, but all are great as far as costumes, makeup, and other production values.
My biggest complaint is the long time between releases, although I completely understand the reasons.
ETA: Wait, that’s not true…a few of the fan made series are green screened, and I’ve seen one that featured small action figures. The two best are Phase II and Star Trek Continues. At least in my opinion.