Thanks. The install, then upgrade to 2.3_1 went off without a hitch. I previously had pfSense installed onto a very, very old and cheap SSD and it ran without issue for 2 years, right up until the drive failed. Then I switched to Live CD, which was just fine for my use, then that was discontinued, so I tried nano, that was miserable.
I'll see how long this cheap SanDisk SSD lasts. I've had a lot of their flash media over the years, and nothing has ever failed. Still even use my 15 year-old 256 MB flash drive for transferring small files.