I was referring to how long it takes to build from source and how much RAM and CPU it uses while building. The interface is fine. I love Qemu. Bellard writes

I was referring to how long it takes to build from source and how much RAM and CPU it uses while building. The interface is fine. I love Qemu. Bellard writes great software. My early experiences with it were very good. But it has grown to become a whale of a program. I had to switch to Bochs.