Product review (5 stars): Worked fine to replace DA29-00020B
I read the other reviews, which were mixed (at best), but decided to risk it to see if I could get a replacement filter at half the price of OEM.  Got it yesterday, fit perfectly, didn't have to shut off the water supply as others have suggested.  You will get some water, maybe a tablespoon, when you pull the old filter-but that was water from the old filter, and I haven't seen any since installing the new filter.

When I pulled the old (Samsung) filter out, I compared the two, and didn't notice any size difference.  Ran about 1 gal through the filter to purge air (just like you need to do with OEM).

I'm still concerned it won't last as long as Samsung filters, or might develop a leak later, but so far it works perfectly.  Water tastes good, flow is the same, no leaks, and the price is right.