Ran this for a table with 7 people, 4 of them newbies to D&D.
Lots of opportunities to use voices, if that's your thing. Good dialogue, simple low stakes mission that can turn very rough if you have a low level party.
To get this under 2 hours, I had the sprite encounter turn out favorably with a good Persuasion roll, and then let them have it with the hunt and gnoll encounters.
Final encounter was very challenging for them (especially since they were depleted, resource wise), but they had an excellent time with enough room for everyone to participate.
Had a good time DMing this, and I recommend it for new DMs and players.