When most hotel shops are posted you had better be at your computer with the sound signal for incoming email at high volume so you won't miss it. That's how fast most of them go. Some MSCs don't even notify by email; you just have to learn when they are likely to start posting that month's hotel shops. Many hotel MSCs require that you "qualify" by doing several of their fine dining shops before they will even let you see the hotel shops.
There are often a lot of blackout dates, so planning around your travel schedule may de hit or miss.
Finally, high end hotel shops require so many interactions and such a lengthy, detailed report that you may not have time for the pleasure or business activities that youhad planned for your trip. AND, you MUST check out of the hotel after the required (usually 1-2 night) stay, so a single shop won't cover a longer trip well.
So, my advice is to dip your toes into the water with a couple of local hotel shops to see the general form of the shops. Then, work your way up to my complex local shops before applying for any far-flung hotel shops.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.