This product should work as well as the heavier but higher pressure canister sold by betterthanair since they're both 90% O2. I've used this style canister in Japan - they sell them at rest stations on the way up Mt Fuji where you can also get your traditional wooden hiking stick burn-stamped for good luck. They even sell these in convenience stores in Tokyo, although I don't notice any benefit at low elevation. I also used 2 large cans of this type successfully on a Mt Shasta summit.
This type of can is thin, similar to a can of air freshener or hair spray. Consequently, they are filled at lower pressure than the thick cannister sold at betterthanair. The lower pressure means they need to be bigger and they usually hold less volume of compressed O2. In order to make sense of this, you need to compare the total volume of compressed oxygen that you're getting. I didn't see that spec on the Target web page for these cans. For comparison, the O2Go-XL canister provides 18L of 90% oxygen, which is just enough for a day on the upper mountain. Remember, these are intermittent breaths of air when you're feeling low, not a constant supply. You'll probably want to bring all three cans if you go with the Target brand.
I'm sure you'll notice a significant benefit at high elevation. Hopefully it's enough to overcome the troubles you've had in the past. Good luck! Let us know how it goes.
