I have not found the visibility to be as bad as everyone says it is. Drive it for a week, you dont notice it. Also, backup camera's are standard after a certain year (I think 2010?). That makes a huge difference. As far as space, you just learn to pack "up" and not "out"
as the FJ has a fairly tall interior as opposed to a large one length and width wise. For 2 people, I challenge you to not be able to live out of it for a week off the grid with smart packing. That being said, the wife and I did recently purchase a teardrop trailer to make the bed situation a bit more comfortable for her.
For daily driving, I find it as comfortable as my 4runner I sold to get the FJ. It is the same chassis, engine, running gear, etc. Fuel consumption is roughly equivalent, and the lack of carpet is great if you are active on a semi-frequent basis (I hated getting mud/fishing tackle, water, etc in the carpet of my 4runner).
On one point however I will agree with Dalko, there are several good options out there, and he mentions several of them. I would cross shop 100 series cruisers and 4runners. Get what you like the best!