Not great, but not bad.
The little power-ups and special bubbles keep it interesting for a few levels, but this game's longevity was doomed from the start.
Clicking bubbles can only be so much fun.
My advice? Add bubble effects. I want certain bubbles to explode into fucking confetti and candy, that'll keep my attention.
More advice? Add music. The best possible way to keep people playing would be to have music that changes as you get higher multipliers. Maybe it starts out 8-bit, then gets slowly more high-tech and advanced until it's high-speed techno?
Just a few tips for a longer-lasting, more fun game.