I saw the Denver show in April of 1988. The show was very different than earlier shows and Patti was out front. It wasn't known then that they were involved (if their relationship had even started then) but I remember hearing TOL for the first time and thinking things weren't all well. It was not what I was expecting after the whirlwind romance and marriage during the BITUSA time and tour. To be honest, I can't remember if I thought there was something between them or if it was just an act, but a pretty intense one at times, but it wasn't surprising to hear that they had gotten together later in the summer when the news broke.
As for the question about what people thought of these shows, they were so different from the earlier tours I seem to remember some people not quite knowing what to think, but for me Tunnel is in his top three albums and has been since it came out and I liked that we were seeing something different, also due to a move, it would be the last time I saw Bruce until The Rising tour so it was a special show. With the archive series, with the exception of Winterland, it's the Tunnel shows that I listen to. I don't listen to the others I have at all.