question re: vinyl plank

[Erin K.]

I have used vinyl plank flooring in a side by side duplex we rehabbed a while back and liked it.  Now, I am renovating an upstairs unit, replacing the current carpet.  Will the vinyl plank be noisy for the downstairs tenant?  We are planning to use the floating floor snap-together planks if it matters. 

Second related question: I noticed the glue together vinyl plank is a lot less expensive. Does anyone have a strong opinion about whether the extra cost is worth going with the snap-together type?  Easier to install or harder?  

Thanks for thoughts!

[Marcia Maynard]

Snap together type is 100% waterproof (trafficmaster allure ultra brand) and can be taken up and put down again if necessary. 

Stick together type is not waterproof and was harder for our floor installer to lay. Once it's down if can't be taken apart.

Key thing is to get the thicker type for more durability.

Don't know how well noise travels with either.