ls02 wrote:

I am thinking about using blown in cellulose insulation for new
construction: walls, attic as well in floors between first and second
floor and between first floor and basement. I have a lot of pipes and
wires so I suspect blown in cellulose will provide better value then
fiberglass batts which hard to put around so many obstacles.

Has anyone done this?

Had this done? Yep. Highly recommended over fiberglass batts. Higher R-value for
a given depth, much less air filtration, and excellent noise control.

What's the cost of blown in cellulose vs fiber glass batts?

Maybe 25% more than what batts would have cost.

What's the best way to apply it to walls and floors? I saw video when
they blow it to wall open cavity then use some sort of screed to
screed excess flush with walls. What about floors? If I blow it to
ceiling will it stick and not fall down?

You don't want to do this yourself. It takes a pro to avoid a crap job or leave
voids around pipes and electrical cables. Too dry and you'll lose anything you
spray, too wet and you'll create a mold problem.

I heard most places who cell cellulose insulation rent the blower for
free. Does HD or Lowes rent it? Can one man operate it?

Those DIY blowers work OK for attic jobs with dry material, but don't do
anything close to the pressure needed for damp material in the walls.