Front access isn't needed if you can give yourself access to reach the entire tank from the back. You have to take into account not only your height and reach, what you will stand on, do you want to use tongs, etc. Also think about where the plumbing will be.
I thought I would have great access to mine, but didnt think about all the closed loop plumbing that I put along the back. Not only does that push me further away, I need to be very careful not to lean on the pipes or...well you know...crack...splash...
This is a similar to the tall tank debate. Many people refuse to think of tanks over 30" tall because they cant reach the bottom with their hands. But there are just as many people who believe that tall tanks look very cool and will go to great lengths to make it work for them.
I actually built up a model of the tank I am working on with rigid foam, set it to the right height, and practiced reaching around to see what would work well.