Something I forgot to mention that's important concerning ssd space and VSL samples is that after you do a full install you can remove any mic you're not using and free up lots of space.
For example: I went through the 2 VSL libraries installed on my MacBook Pro (Steinway and Imperial) and transferred to an external SSD some of the mics I wasn't using (some of the high surround and room mix mics) and I freed up 255 GB of space (some single mic profiles can be 30 GB). I opted to save the mics on an external SSD for a quick transfer back in case I decide to use them in the future.
VSL has some good features in their software. It's very easy to transfer libraries, trim them down, tell Synchron Piano player where to find the files, etc. It's one of the more user friendly interfaces on the market.