Buttons - the hover effect is weird and messes with letter-spacing.
Forms - the focus style is just a colored border, not enough to set a field apart. Bulma does forms much better - https://bulma.io/documentation/form/general/
Looks good on the device i'm using. Non-standard android.
What, exactly are the benefits here over bootstrap or any of the 300 other frameworks with similar specs?
Looking at your examples I can't immediately see the difference to bootstrap other than (maybe) the smaller file size.
...updated the title to reflect this more.