I for one found it very enjoyable, with some excellent scenes, great special effects and good dialogue.
I must say, however, I do think that the New Voyages/Phase II team should spend a bit more time on script editing. Whilst there are few outright mistakes there are some moments that don't make a lot of sense, or could do with better explaining.
For example, why exactly was the Enterprise fighting that Klingon ship at the start? It made for an exciting opening, but what caused it?
If the crew of the Copernicus had deliberately set their ship on a self destruct course, to destroy the infestation, why did they also send out a distress signal that did nothing to inform anyone as to the nature of the emergency? All they did was lure another ship into danger.
The boarding party searching the Copernicus find a dead body slumped in a corridor. They give it no more than a passing glance. Only when they find a second body on the bridge do they scan for cause of death.
It's not just Blood And Fire. In To Serve Them All My Days Kirk calls the Ambassador to the bridge. She arrives just in time to identify the enemy vessel. There is no explanation of what Kirk originally summoned her for. It's like Elaan of Troyius popping up for no adequately explained reason, just so Spock can detect her wedding jewels are dylithium.
Better editing would perhaps help the story flow too. The scene between Peter and Alex, though well written and directed, drags on for far too long.
I must stress that I make this point for the simple reason that I like the productions. If they were no good I simply would not watch them. As it is, small niggles like these detract from an otherwise excellent piece of work