There are many laptop models available on the market, with several variations on price, size, performance, and software. There are notebooks aimed at gamers for multimedia presenting, other ones looking for extreme mobility, some focusing on design and coolness, and some models where the low cost is the main highlight.
The Acer Aspire 5742Z is a relatively big laptop, so if you are looking for a small and light machine that you can carry everywhere, forget about it. It is also not aimed at high processing performance and does not have a powerful graphics card.
However, if your objective is to buy a big notebook with an excellent keyboard, large screen, and low cost, the Aspire 5742Z is a good option because of its relatively updated architecture and upgrading capability, such as a RAM memory increase. And, best of all, it has a good price tag.