A bit surprised with how heavy Djoker is favoured here - Books not giving Berdych much of a chance to win here at all.
But the spread of +5 is great. Berdych will need to either win a set, push one to a tie-break, or a 6-4 7-5 type victory will cash the bet and I think atleast one of those situations is very likely. Both have played some closely contested matches in the past and largely due to Berdych being a solid server and I believe he'll be able to hold enough times for this bet to be good.
Even if Berdych isn't able to break Djokovic, this bet can still cash and I think its a good enough spread. He played well against Federer saving match-points and his confidence has to be soaring after making such a great come-back. Anytime you can get this spread with a solid server its good value and Berdych is certainly capable of even taking a set from Djokovic like he did at the AO.
Some books have it at +4.5 but I'm taking +5 at 5dimes as the push insurance could come in handy if Berdych comes flat in one of the sets.