I bought my last Acer around 2010 (Aspire 4820TG I think, good machine). Their notebooks were always on the cheaper side, where its price just sat right with the offered value. Cooling issues were always present and weren't a big problem as long as the machine was maintainable. Unfortunately maintainability in notebooks (and electronics in general) all changed around 2015-ish and from there on it was used ThinkPads only for me.