kenafein, my conclusion was that the set is definitely worth US$25 and that it's a cheap introduction to MF lenses. The lenses probably aren't *bad*. Yes, many better lenses exist, and with a bit of experience and research and persistence and luck, many fine used lenses can be found for a pittance. But first, one needs some experience.
We learn good judgment from our experiences.
We gain experience by making bad judgments.
All those lenses should be decent when stopped down. Using them will teach the benefits of stopping-down; the utility of working wide-open; how to make content trump IQ; why primes are better than zooms, and why zooms are more utilitarian than primes; all sortsa stuff. This kit costs about the same as a fancy supreme pizza and has fewer calories. Go for it!