Yes I think frame.work is a good and reputable maker. They are indeed still young, but they've made and kept a number of big early promises, and have been consistently shipping. There are some bugs/quality concerns but I'm confident they'll work them out.
I've bought hardware before though from companies I'd never heard of, and either never received it or when I did it was much poorer quality than advertised or was so long after the order that I'd nearly forgotten about it. Would hate for that to happen with xcalibyte
Not saying they won't turn out to be, but they are still young considering the space they are in.
Similar holds for any other hw maker that is only starting out!