Story: The consultation room carries very little of its own story, instead relying on the parent work of F/Z for the story. It does help to fill in some missing information for the new-to-Fate series watcher, at least in the first 2 episodes, and even VN readers will discover a new thing or two.
Having watched this after watching F/Z, I might suggest that this show can or even should be watched in line with certain of the Fate/zero episodes so that the watcher can create (partially) the same tone that FSN VN has when when the FSN reader hits a bad ending. While there may be some references which the watcher won't understand without having read the FSN VN or without having seen at least the FSN Fate and UBW paths in their entirety, I didn't see anything in particular which might spoil F/Z in particular episodes.
Episode 1 can be watched any time after F/Z episode 1. Episode 2 can be watched after F/Z episode 4. Episode 3 is a little weird from a timeline perspective but should probably be watched after F/Z episode 4 or later. Episode 4 can be watched after F/Z episode 15. Episode 5 can be watched after F/Z episode 16. Episode 6 can be watched after F/Z episode 24.
Art: The art resembles the "cheaper" art that one would find in the Tiger Dojo of the FSN VN, which when compared to F/Z is still nothing to scoff at. Animation wise, there is much less movement than in F/Z.
Sound: The sound was merely good (I didn't notice it in particular).
Character: I think this actually adds to the character of the involved parties. While it might not be canon, episodes 3 to 6 carry an interesting tone for each of the characters and aid in understanding what that character was thinking or feeling given the corresponding time period in F/Z.
Enjoyment: I enjoyed it, given my general enjoyment of the Tiger Dojo. The consultation room is not however what many will expect tone-wise compared to F/Z, given that it does create a more similar atmosphere to Tiger Dojo. The tone in general is much lighter and may even cause laughter (shock) compared to F/Z.
