As I have also said, that entirely depends on your preexisting build. Like I said; when you look at it in a vacuum. Just because you can meet the requirement for it on Aesthete's by swapping a singular meld, that does not necessarily reign true for all builds, hence the vacuum. 2701/2837/554 (My pre-existing stats; also max melded btw - Also wasn't necessary to discussion) is more than a cut above 1 simple meld swap, as is 2693. My argument was that you shouldn't dismiss the potential benefit of it on the basis of insufficient research or consideration of your pre-existing stats. This just comes down to if you have them and not meet the stats then it's a tangible benefit over Aesthete's, this has always been my argument. hence vacuum, and how far alongside the progression you are. If someone has 2693~ Craftsmanship and is calling the tools crap, whilst being equipped with Aesthete's, and having Skybuilder's tools stored, then I'm going to laugh at them and call them wrong, simple as. My friend sat on 2755/2815/554? I tell them to just stick with Aesthete's tool as it doesn't lead to them having any real benefit since they already hit the most meaningful breakpoints.
We've had this selfsame discussion and it'll lead to the same result; this. Whether they're good or not is 1 thing, whether you should grind them exclusively for the aforementioned benefit is something entirely different. If you stuck with it, well done, it's more than likely a free upgrade as well as some fairly 'inexpensive' glamour, if you didn't, then that's unfortunate.
As per the topic regarding them being BiS, you can't really establish in the first place anyway, simply because crafting has several methods of achieving the same goal, thus it comes down to personal preference. Do I rock 2735 and 20 step it with tea/syrup? Or do I rock 2746 and 25 step it without tea/syrup? Or do I go for something equally as effective? Again, several methods of achieving the same goal, all equally as effective, just to name a few. Expecting something truly meaningful with these tools is just simply setting your expectation too high.
I'm still curious regarding their Blessed Tools, if I'm being frank I would take the relics over the Blessed Tools, simply because for a lot of players the grind to get caught up with the Blessed Tools is still quite a monumental, and boring grind. Once you're caught up with it then it isn't too bad to keep up with it.
Personally, I prefer the Skybuilder's Tools over Blessed in terms of Aesthetic, but of course, subjectivity.