I looked at the deals offered to see if the savings would make up for the $395 membership fee and the first hotel I checked was The Charles Hotel in Munich Germany. The Andrew Harper 'deal' was 2 nights in a junior suite with free breakfast, free wifi, some food credits and early check-in late check out privileges for $1178 based on double occupancy - which usually means the listed price is per person so you'll be paying double for two people, but I hope this is not the case here, because -

You can rent the same junior suite with all the same perks for $594/night for 2 people including VAT. So even if I'm wrong about the price being for one person, the 'deal' only saves you $10. I kept checking out the deals on the Harper site and they weren't. The prices were the same, a tiny bit smaller or even higher than what you can get going direct to the provider.

And also that Charles Hotel junior suite - cheap looking. The amenities and decor make Holiday Inns and Motel 6 look luxurious. Really unimpressive. If I spend nearly $600/night for a hotel room I expect WAY more.

So personally I think you should save your money. I know I will be.