Kind of a milepost game IMHO. The Astros have been on a long trip, winning two series coming to Minnesota. The Twins have won a bunch of series in a row against bad (Oakland), medium (Arizona) and good (Seattle in Seattle) teams. For the Twins to add a series win against the Astros puts them above Houston in a tiebreaker and solidly in line for the second wild card, if they can't catch Cleveland. It wouldn't be the end of the world with a loss, but Houston then looks to be the better team going forward.
It will be tough to hold either team down iMHO. It should be a high-scoring game where the team that takes the best advantage of opportunities wins the game. Go Twins!