I bought this along with a bubble machine. At first it worked well but we paused for a few hours and tried again, the bubbles wouldn't form. When I tried with another bubble solution, it worked quite fine. I think it's something with the consistency once it dries. It should be fine for consistent use.This is a combined contrasting review for 3 bubble solutions:Just add regular bubble mix half and half works greatgreat value for our moneyIt’s a giant bottle but it’s so hard to use. It’s THICK AND SLIMY! it gums up the bubble machine and is really weird.I got the concentrated bubble solution for the long summer days and this really is great value and lasts for long and is excellent value for the price!We have used it in bubble guns as well as wands following the instructions online and the bubbles were very good. Being a concentrated solution, it is less convenient as you need to dilute it but it saves on costs and space. It takes only seconds to dilute in water once you know how the concentration required (more diluted for regular and less for giant bubbles etc.).My only complaint is that the recipe for diluting did not come in the pack and it is a bit of a hustle to keep having to look on the product page each time... I wish it would have been printed on the bottle for convenience.otherwise a nice product and it provides hours of simple good old fashion fun :)I hope you find this review helpful!I got this bubble solution for my kids bubbles gun. It is very easy to mix we just need 1ml of bubble solution with 10ml of water. I mixed it with these measurements and it worked great. This is a great option for unlimited fun for kids and we can save money. It doesn't smell bad and is good to use this under adult supervision.We tried this in the bubble machine and it worked fine. My kid along with his friends enjoyed playing with this. However the price is slightly higher and we can get similar product for much cheaper price.