I've used both the Hovabator and the Brinsea Eco 20, and both worked well for me. The Hovabator required a little more fussing. I have heard complaints about not being able to get the humidity up in the Brinsea, but I just stuffed a wet washcloth into one of the water channels, and if it looked like the humidy was dropping, I just spit water through a straw down onto the washcloth. I think it partly depends on your climate, but it worked great for me here in the northeast.
Have fun hatching!
Have fun hatching!