Totally agree with you there, dialogue is flat and boring. Also, puzzles are yet again way, way, way too easy. I mean could we at least get some challenges for a change? By that I mean that puzzles are very predictable and they don't require you to think much.
The times you get stuck it's generally because of a hot spot you didn't mouse over the first time you explored an area. Once you have all the facts and the complete overview, you know exactly what to do and the puzzles are solved instantly. Honestly...TTG can do so much better.
Overall the episode is one of the least entertaining ones, fixing Doc's love life is not the most brilliant story concept. Personally I was bored out of my skull playing this, and it was mostly due to boring dialogue that I had to sift through, and I was put off by the voice acting by most characters... except for Chris Lloyd. He's great of course, but I just never got into the actual game world, I felt. Not the same way I have been with Sam & Max and Monkey Island. Sound and voices really did seem way out of synch in places and it did put a damper on the atmosphere.
It has just gotten so bland...it saddens me. Telltale had the opportunity to take a brilliant franchise like Back to the Future and make it into something truly spectacular, but all they made was a second-rate product, doomed to be inhabiting the $5 discount bin of your local obscure retail outlet in 2 years time.
Well I'm sorry I can't give you a more positive review. Other people might have something positive to say, but I just can't.