I have had my Baby BiOrb for almost 3 weeks, and so far, I love it! I am a woman, so the small opening at the top is not a size issue. I have been using a turkey baster to clean out debris, and that is working well. The water is crystal clear and my Betta, named "Chum," seems to be thriving. I have restricted the bubble flow, and plan on adding a heater....looking for suggestions on that, as the tank is 4 gallons and I need a heater that won't touch the sides. I like the round design of the tank, and even though it distorts the size of the fish, my grandkids are mesmerized by it....PRICELESS!