Since no one has responded, let me simplify my question.

Does anyone experiences with trying/using a Dyson vacuum on SmartStrand fiber carpet that is a low patterned style as opposed to thick plush carpet?

When comparing carpet fibers for long-term stain and dirt resistance and wear--Anso Nylon with R2X or SmartStrand--will there be a big difference? Is there a strong reason to choose one over the other?

I think you should consider linoleum instead. It can take a lot of abuse. Then just buy a large rug. Sorry I have no experience with those carpets.

In 2010 we installed Mohawk Smart Strand on our stairs and the lower level (3 bedrooms and a hallway) of our house, which is cement slab underneath. I have no qualms about recommending Smart Strand. It's soft and very easy to keep clean. Plus it is environmentally friendly, made from recylced material (milk bottles, I think). I don't have a Dyson - a Hoover upright is what I use.

I use Dyson and it can be used in any kind of carpet. It can go with thick carpets so i assume much more with low patterned style. One tip so you wouldn't be vacuuming often and your carpet won't be too dusty, its always good to have an air purifier to filter dusts. With air filter i vacuum at least once a week or every 10 days

I'd prefer to switch to engineered hardwood or cork, but my husband fears that would cause issues with the acoustics.

It will make sounds "brighter", but a few well-placed rugs, fabric upholstery and wall hangings takes care of it.

I can say that Dyson vacuums can wreck carpet, as it did damage our new frieze in one of our homes. If you let it stay on the same spot for too long or when starting the vacuum with the brush on the carpet, it would untwist the strands and make fuzzy patches in just a couple of seconds. But it was fine on our low pile carpet.

I agree with those who suggested to just go for the wood and put in throw rugs for the sound deadening. If you do go with carpet, definitely check with the manufacturer to see if they have an approved vacuum list. Many of them actually tell you not use Dyson on some products.

You are on the right track looking at nylon and smartstrand for a high traffic area. Most pro tests I've seen indicate that Nylon is still top dog as far as durability and not crushing, but Smartstrand is very close. That said, smartstrand is generally easier to clean and more stain resistant. Nylon has the advantage in resisting soiling and if you go with a solution dyed nylon, you can match smartstrand in ease of cleaning. Solution dyed nylon for residential is not the most common yet, though it has been expanding in recent years but I don't think they have it available in nearly the same softness as your soft nylons and smartstrand products. I generally don't look for softness if I am looking at a high traffic area. Other considerations for high traffic - keep to a lowerpile cut or loop carpet. If cut pile, go with a lower pile frieze or textured. Color plays a huge part in hiding soil so look at your mid-tones in particular. Twist should be at least 5.5, 6 preferable, and should have fairly high density.

Thank you everyone for offering your suggestions. I haven't made my choice yet but I'm leaning toward a patterned carpet in anso nylon with R2X.

What did you go with, how has it held up?