The Kenda standard tube is a great value for the dollar. In my opinion this to provides additional protection against Flats. In addition it comes with a smooth valve option which will not tear up the grommet in your pump.
Standard equipment. Not the lightest, but they work well and are relatively durable. Best part is that they come in longer valve stem lengths that work with deep section wheels. Recommended if you want a no hassle, no fuss, good value, dependable tube. Competitive racers or weight weenies will likely look for latex options.
Can't go wrong with Kenda tubes. I see riders try to save a few grams with super light tubes only to have to waste time on the side of the road changing a flat. This tube is reliable and does not cost an arm and a leg.
For most of the tubes I have purchased, all good. But at least a couple out of a couple dozen have had Presta valves that don't open and close properly. Have been able to keep them working, but sometimes a problem during inflation - let the air out after pumping.