Aw mamsh, so happy you found something na gumagana for your LO and hindi nakasakit sa bulsa! Dr. Isla sounds like a solid dupe, yung iba sa mom group ko namin also swear by affordable brands na BPA-free and anti-colic, kaya super valid yan, especially kung okay na okay ang baby mo with it. Since matagal ka na nag-try ng iba, you probably know what works na for your son/daughter na, so if Dr. Isla's the winner, stick with it! Mas makakatipid ka pa for other baby essentials na equally important.