Gfisherwils
I uploaded an stl for the purpose of answering your questions.
I was able to select a Hub near me and saw what appeared to be the cost of the file.
I went back to the download a file page and started looking at the info there.
Nothing said, click here to view the file in 3D.
I clicked on the part and the 3D viewer came up.
I viewed the file in 3D, Not that it really mattered.
I had no direct contact with the Hub I selected and left the hub.
…
Now, I noticed that, as I’m answering your questions, that in the upper right hand corner of my screen,
It says “3D Print” with a quantity of 1 next to it.
I do not wish to have the part made, as I now have a 3D printer of my own.
I also do not wish to waste a hubs time while just looking.
…
Since I’ve purchased my own 3D printer, I still use Hubs services for printing in different materials than what I have and
If I’m having trouble printing something, I also have a Hubs service print one for me so that I can find out if my design
has flaws or if I just need to improve my designing or printing skills.
…
So;
My feeling about your "Temporary Experiment is,
when using it, I feel like I’m getting sucked into something that I don’t want.
Contacting a selected hub for pricing without the instant stuff would get me an accurate quote because
the Hub will let me know if the model will print well and not need lots of unplanned supports etc.
and
The viewer is ok, but will not be used if there is nothing saying “Click Here for 3D View”
I hope I answered your questions.
I also believe your little experiment is costing your Hubs more than just a few losses in new orders
from people just starting out.