I have the tomoko its is an excellent keyboard for the money.
I purchased the HAVIT keyboard as a daily driver a little while ago because it was so cheap and ended up having major issues with the space bar tilting to one side or the other, or getting stuck down. It annoyed me enough to purchase a real mechanical keyboard. TL;DR - you get what you pay for.
The leading keyboard (HAVIT) isn't even mechanical. It's a mechanical "feel" meaning membrane fuckery.
Really? Don't just pick what looks nice...