I have no experience with such economy outfits but I can offer a word of advice:
if you are serious about flyfishing it's cheaper to buy a better brand in the long run. Most of us have several rods 'retired' in the garage that we are not happy with and one that we are. If you add the price tags together there are several times the dollars spent getting there. And a top brand can be re-sold for good money if you decide to quit.
If you are not serious, well then buy low and take your chances. My experiences with bargain outfits has been very bad, but you might get lucky.