I've tried all the 'cheaper' brands of harmonicas available and settled on these as being the best of them. When I started playing harmonicas I basically bought one each of the cheaper types, in different keys so see what I liked. I've settled on these. The quality is not quite as good as the £20 upwards price range, e.g. hohner sp20, or Lee Oskar, and I may replace ones that wear out with dearer harps, one at a time, but these are excellent value.
When I started I thought I'd only need about 5 harmonicas, A,C,D,E and G, but soon realized that guitarists capo up a lot, and C#, D# etc are getting as much use at the naturals. I've used them a a couple of gigs now, and I've grown to like them a lot.