I received a couple of PM's recently asking me specific questions about agencies and concern over spending money on no shows, etc. To that end, no shows come with the territory and greatly varies by time of year, agency and city. There really are no solutions. The best thing you can do is as follows:
1. communicate with the agency staff ahead of your trip (not just the owner)
2. send your picture and basic info on yourself. Where you live, age, kids, work, etc.
3. send a list of 10-20 or more women that you want to meet. The more the better as again some will not be available, inactive or no shows.
Again, most agencies range from good to above average. I have only met 1 or 2 bad apples. They will vary by staff, location, facilities, amenities and services.
I happen to like the large tours like TLC for the newbies but agencies are also a viable option. Of course, learning spanish will give you the edge but don't let it be a show stopper. happy hunting.