Is Zeiss Primo Start microscope worth the price for student use?
I'm defenitly no fan of the Primostar. It's made to order for Zeiss, probably by Meji. 

It's a fine microscope allright, but compared to the gray and beige Standards, it's a toy. 

And those gray and beige Standards were already kind of toys, compared to the former black GF stands...

Being a "home user" there are far better and at the same time much cheaper  alternatives availlable on the second-hand market. 

In Europe, a Standard 14, basicaly equipped (4,10,40,100 achromats, 0.9 condenser, build in 6V/10W HAL illuminator, binocular) can be bought for anything between 100 and 200 Euro. 

This is a universal platform, designed with flexibility regarding applications such as DF, FC, DIC, fluorescense... in mind. The same can't be said to that extend regarding the Primostar.