I have had an Acer (a laptop, bought because it fitted a price I had been allowed). It was Ok, nothing wrong with it basically, but the battery very soon became useless (that didn't matter, as it happened). I've also had Dell - very good, no problems; and others that I can't remember. But I've never bought a PC by make as such. What features does the Acer you're considering have over other makes? How much memory? what about hard drive? etc, etc. I'm sure other people will also suggest features you should be looking for.
UK's best mobile network 2016: best 3G, best 4G, best mobile networks revealed