I only use MED because it's the only modelling program I have and the first one I've used. MED needs several radical changes to it to make it anything worthy. I'm constantly running into bugs, annoyances, limits, and other strange things, of which has now gotten me thinking about getting a third-party modelling program to replace the flawed MED. I'm having a hard time getting into designing in 3D due to all the issues and problems with MED. Short of using thousands of blocks and getting 6 fps frame rates, 2D is currently my only option, short of getting a third-party modelling program.