Thank you for the feedback. I'll take a closer look at the puzzle, and make it so less guesswork is involved.

This needs a fair bit of work before it can be considered a good/fun chamber. Firstly, there are no symbols or antlines on anything so everything the player does is due to guesswork rather than due to logic i.e. the opposite of a puzzle. Fortunately, I guessed correctly and got out using 1 portal jump and placing 2 cubes in the right place, purely by accident. Everything else in the chamber is optional. Players will always look for easier/alternate routes to finishing a chamber, you may want to redesign this chamber so that your intended solution is the only solution and be sure to add antlines/symbols to everything relevant, just so the player knows what's going on.

I've got a little collection of chambers going and I'm always interested in feedback. I'd be grateful if you'd have a look:
Elementary