I'm becoming familiar with many of the Siemens packages / hardware, I have taken a few training classes and I am impressed with the big picture stance that they are taking. TIA Portal still has a bit of growing up to do before it can perform all of the tasks that the older software packages could do, but it's on the way and the integration is really nice. Plus, they actually sell a reasonably priced industrial Ethernet switch.
We also use a lot of Allen-Bradley / Rockwell Automation stuff here and one of the big differences is support. The A-B people won't even talk to you unless you have a support contract, or open a P.O. for each telephone call. Siemens on the other hand will talk to you for free if you're using their equipment. I like the equipment from both companies, but the Siemens support really does make a difference sometimes.
This is the same argument that IBM has made in the past. They are trying to get back to it. The advantage is that the vendor has a long history of supporting their products and handling long life cycle situations. They also have a large and extensive support organization. Companies that fit this category also are sensitive to the fact that they can put at risk future sales if they do not respond. This is important in so many industries, none more so than industrial control. Yes, with digital components and standards it is possible to cobble together a solution, but that requires more expense on the customer side.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.