@B1rn3 Suggestion: have 16+gb ram.
I've run #qubes on 8gb, still usable, but less than 16gb will really limit your performance (due to the various VM's and multitasking).
The Qubes restrictions, isolation can slow you down compared to other options if you do a lot of work on it and need to transfer between spaces.
It's not for everyone.
I do like it. Opt for #whonix while installing (it's an option). It's nice to have.