I've taken a few classes here and I've found that Newyorksys is a great place to refresh and expand my SAP HANA skills. It's located conveniently in NewYork, with a large selection of courses.
When we visit the site, we get a list of courses that's really helpful during the selection of the professional course. Everyone had a unique registration id to use and attend the enrolled Course sessions and Server Access in Online.
I took SAP HANA with Ben and it was fantastic. He has a lot of experience with the SAP HANA Module and taught us how to generate a good workflow and use many different functional techniques. The classes were well paced and questions were encouraged.
The courses aren't cheap, but I would definitely recommend them because of the high quality of trainers and content. Special bonus: you can renew the server access again to the next six months at low cost.
I would definitely take a class on another course from Newyorksys again, totally worth every penny. Thanks.