Acer Aspire AX1800 user here, Only ever had to contact Acer support once (3 years ago) to come fix my first virus infection, they came out fast and fixed it quick.. for a price.
Since then now that I'm an advanced user I no longer need Acer "support" so really I can't say or know how they are now.
They did take a 1 month and a half to send me out my factory ordered PC tho.