As someone that used to train a lot of folks on technology I would suggest that you do research to find out that the company is legit and that they can support your future goals with their knowledge and that you thing has a good report, it is good to include some idea of the type of business you do and are trying to do. After that I think in a lot of cases it is on the trainer to do the work. Its great to be active as a buyer and of course it is a big purchase but many good trainers have literally trained hundreds of labs and if they are good use feedback and experience and genuinely use their expertise to try to make you successful and happy as a customer as that is their role. Its like going to a five star restaurant and trying to run the kitchen otherwise, you can let the chef know some things you like but then trust in wisdom and expertise to get you a good experience. At the end of the day any good training program has professionals has been able to train many labs and know how to run a course better than the individual knows how to develop an individual learning program.