Morning Paddling crew!
I just saw that Life Straw has this new unique water filter straw solo. Has anyone used it? I’m looking for positives and negatives…. I appreciate your time and opinions.

I’ve never used life straw.

We use a 2 gallon gravity filter at base camp and the Sawyer SP129 squeeze bag system everywhere else. Sawyer system claims to last a lifetime, but bags for it need to be replaced after ~2 weeks of use because they can fail. It also needs to be back-flushed weekly. But, I really like the system for its convenience. I have used it on thru-hiking trips and in the BWCA with no complaints. Just reach over the side of the canoe to fill the bag, screw on the filter, and squeeze it into your water bottle of choice. Boom. Done.

Not sure what your intended use is, but it doesn't look like the best option for BW. I generally use a gravity filter in camp and a [Sawyer] Water Filter Bottle on the go. Both are simple to use.

I have not had an issue using Life Straw for personal water bottles (https://a.co/d/3bSYOkx). In some cases, it has outperformed the Sawyer Minis.

That filter you refer to is similar to the Life Straw squeeze bottle (https://a.co/d/1YVflHE), my primary personal water filter. I can dip and refill it while paddling or fishing without incident, and I generally do not need to back flush while on a trip.

We use an off-brand gravity system in camp for cooking convenience and meeting group volume needs.

I bought the lifestraw water filter bottle last fall. It's a lot better than pumping water or waiting for a gravity filter. The only downside is you have to suck harder than the regular straw. TWSS. LOL.