I don't like acer since they and their sub-companies they've bought out are definitely on the lower end, bargain scale of the PC world. The newer models don't seem to be incredibly cheap looking, but from some models I've had to unfortunately work on, their build quality suggests there's some corner cutting. I saw one where the heat sink was way larger for what should be on a processor of that spec and it had little airflow. Generally, you stick a heatsink that can disperse heat appropriately with proper airflow.
Also, their batteries I've seen are balls! But then again, I can't say now since they might have gotten their poop in a group and now have better standards.
I'd recommend going for an HP, especially the Pavilions, they have really nice overall build qualities. Or Asus, the same reason as HP. But remember, you get what you pay for....