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.
I was quite pleased with this harmonica, and got a few in different keys. Great value!
The form factor is quite chunky, fatter than most hohners, but the sound holds up pretty well, giving a rich tone and good bends for blues. I would recommend breaking it in slowly for a few days by gently blowing chords (several holes together).
As a cheap blues harp to fill in your lesser-played keys I would certainly recommend it. If you only buy one harmonica though, particularly if you are learning, I would get recommend a Hohner Special 20 or Lee Oskar Major Diatonic, either in C (as assumed by most tutorials / teachers) or F (so you can play a blues in C),
Please note that a B(H) diatonic will play blues (in cross-harp or second position) in Gb, so this is the harp you want to play a Gb blues. To find the blues key count a perfect fifth up (7 semitones) or a perfect fourth down (5 semitones) from the key it is stamped with.