Depends on what basis you want us to rate it.
As a series of sprint races, it had the explosive finishes, the occasional unexpected contestant, crashes and passage through impossible gaps, partially successful trains and a bit of controversy, but no late catches or escape attempts, and one dominant rider so more predictable than you might hope for, so all in all, middling. It would be odd to want to rate a series of sprints by anything other than the standards for rating sprint stages.
But if you want to, then it did exactly what it was expected and intended to do: bring a number of top name sprinters to the event, force teams to make a decision as to how to configure and balance their teams, test the composure and concentration of the GC contenders and their teams, move the race from Germany to the Jura without long transfers, and build up a bit of accumulated tiredness in the legs to make it an endurance event. Exactly what first weeks have done for years, and successful on its own terms.
And in terms of entertainment, only good for a few minutes a day, but we live in a world of many diversions and stimulations, so it doesn't bother me.