oh man. I wish I got here sooner.
Acera hardware is crud for your bike. It's going to give you issues, trust me I know. One rule of thumb is don't cheap on hardware, get at least Deore front and rear derraullier's and SLX shifters if possible. The problem with Trek and Cannondale is that the sub $800 bikes are usually beefed up with neat add-ons that cost them next to nothing meanwhile they cheaped out on the drive train. I fell into that trap with my 2013 Canonndale Badboy 5. I thought it was like the 2012 with full Deore setup... didn't double check and now the Acera front has completely fubard on me after only 50km. The same happened to my best friend and other commuters in our group with the same hardware. It's so bad that Shimano doesn't even list it on their own site! It would be like buying a Pentax K3 and putting in no-name brand $5 32gb memory cards.
The Acera will be fine for flat terrain, but if you start doing some hill climbs (we got a lot in our river valleys where I'm from) then your in for some hurt. If you can, find the Deore upgrade kits online, theres an online site in the states somewhere that sells them for cheapish.
I ride my Cannondale to work daily, 10km round trip, and then also do a good 4 hour trip a weekend in the summer. I've had to completely change out my drive train from that Acera crap. If I were to do it again I would have bought a Scott or a Surly.