I'll throw one in for GFXT. I'm sensitive to the GABA, so it's been too strong for me to take at the recommended dose regularly, therefore I've had to take a break and reset things. While on it though, I did notice very deep, uninterrupted sleeps, with vivid dreams (and I'm someone who almost never dreams), while taking the full dose however. Definitely works in that regard. Better that a supplement is strong and effective, than a non-effective waste imo. You also can get away with using 1-5 caps, so seems like a great deal. If it leaves you very groggy like it did to me, try taking a break and starting with 1 cap, and work up from there.
Another plus is it doesn't have stuff like Phenibut, which you may not want to take nightly, and from my research into what product to buy, I learned that the formula is one of the most well-dosed and effective on the market. Has some great feedback as well, but for me personally, I'll withhold my final judgment until I can fix my GABA issues.