It is pretty solid but it runs into a few issues. The paddle controls poorly, and i am hit with a bug with causes it to instantly move to the right at the beginning of a level. Sometimes the controls stick as well causing me to lose control. The ball physics need work as well, as the ball will hit a block dead on and bounce horizontal. I have also experienced the ball hitting the wall so much that it turns back without hitting the block. It also goes a tad fast some times but i prefer challenge. Also the paddle seems to function like a rectangle causing the ball to just bounce out of screen if you hit it by the smallest margin on the side. Even with liking a challenge, the fact that you have to do a perfect run to complete a level is annoying.
Overall I think its fine but needs a lot more polish to be considered a good game.