I visited this WHS in Summer 2019 as a stopover on my way back from Czechia. Overall, I quite enjoyed what this quaint Bavarian town has on offer even though I felt its water features have nothing particularly unique or outstanding. Even in Bavaria there are similar towns with equally lovely fountains and water features, let alone in Germany as a whole or on a European or worldwide level. Strangely enough it reminded me of Regensburg which I had rated similarly.
I'm very glad I visited mainly for the Fuggerei apart from the extra tick after completing Czechia. Had it not been for its inscription, I would have missed out by not visiting as I wasn't aware of its existence. Unfortunately, Augsburg's inscription does not add any substance or fill in any gap in Germany's quite saturated WH list, but I suspect that those who drafted its nomination knew that this was precisely the case yet headed on to attract more tourists. For those of you who haven't visited the Ice Age Caves yet though, I'd recommend sleeping over in Ulm rather than in Augsburg as there's much more to see and do there.