In my opinion, the RS material is highly hit and miss... The tricks are clever "toys", something for the amateur but which don't warrant the expense - for my personal tastes and the way I work - to get them.
Most ideas are rehashes (sp?) of classical principles: very clever ideas, indeed, but hardly original. As a semi-pro, they are not for me: I have my set of impromptu material, worked out in 20+ years of performances, well rehearsed, and I don't need to add/replace it with the tricks provided by RS. Most of them are US-centric, which makes them unsuitable for me, hopping between the UK and Italy. I enjoy the ideas and I enjoy the tricks: I have a drawer especially for RS :)
Other than the first effect and an idea some months back (an "extra"), the material has been disappointing to me personally. I won't renew my subscription... nothing simply fits my style and my performances. I don't want to say the material is garbage: it's simply not for me, but if you are an amateur and don't rely on magic to live, then their ideas are nice. Not commercial, but nice.
This month's effect is clever and it's a practical way to perform something we all know without having to rely on larger props. But is it magical? Nope. My 9 years old saw right through it (indeed, she is familiar with the principle, having had access to my library...). There is nothing magical in most of the RS's releases: puzzling, maybe, but not magical.
I don't do puzzles, sorry!