- The Asus laptop you linked looks like an okay laptop, but it's kind of on the expensive side for what you're getting IMO.
I would never buy another consumer grade laptops again, I try to buy business/enterprise class laptops because they just seem to be made better; they tend to be really expensive new but they are built well so the used ones are still very nice.
- Lately I've been recommending that people buy the Dell Latitude series used, e.g., this:
https://amzn.com/B008OK05QC , they're great laptops; the only thing about used ones are is that you should probably reformat / reinstall Windows for safety.
Benefits of the Asus over the Dell I linked:
- The Asus has a Haswell instead of an Ivy Bridge intel, I've used the Haswell series at work too and IMO it's not a giant difference in performance; the i3 CPU in the Asus is kind of weak so they might actually be about the same.
- The Dell has a smaller resolution on its built in screen, (1366x768 vs 1920x1080 on the Asus), the Dell is smaller but this could make a big difference for you.
If you use an external monitor this is not very important, though; there may be other models of Dell that have a better resolution... let me know if you want me to look.
It's also sort of a question of how much space you have, if you're looking for a compact laptop this is what you want, there are larger Dells that have a bigger screen.
- If you decide to buy used, always get a laptop with a warranty, just in case the Windows license sticker isn't present (for the Dell, it's under the battery).
I can confirm that this laptop runs GzDoom very well even though it doesn't have a 3d graphics accelerator.
For $150 used you get a really solid computer that is pretty powerful. Memory upgrades and hard drive upgrades are really cheap ($120 later and you have a 1 TB mechanical hard drive and 16 GB of RAM, if you want), in my opinion this is the best bang for your buck.
EDIT: FL Studio 10 works very nicely on the Dell I linked, it plays the "Transient Processor" demo without any issues, I would probably be OK with the screen size but I strongly recommend that you try FL studio at 1366x768 on the PC you have now just to make sure you are ok with the resolution. You may want / need more screen space for FL Studio.
Note: I don't really use FL Studio much anymore, I found out later that FL Studio is not that great for making midi music (which is what I want to do), I use Aria Maestosa when I want to try to make music.