Why is Bentley Microstation the worst software on the planet?

It was the start of 3rd semester for me, and one of the seven (tiring) subjects was Computer Graphics (just a fancy name for Computer Aided Design). Although the theory wasn't much of an issue, it was the practical that was the most irritating part... The software being used is Bentley Microstation, after using which, I have started loving Photoshop, seriously!