I struggled long and hard before finally deciding to get the 13 inch Ultimate MBA instead of the 11 inch Ultimate model. The only factors that caused me to favor the 13 inch Ultimate were (1) my admittedly demanding needs meant that I couldn't get by with only 128GB of storage, even for a little while, and (2) I wanted to be able to use the MBA I bought all day every day and was afraid that my aging eyeballs wouldn't be able to accommodate to an 11 inch screen if I used it heavily.
For somebody who plans to use another computer a fair amount of the time, though, I think the 11 inch Ultimate would be the perfect choice. I doubt if there are many, if any, scenarios that would be too demanding for the 11 inch Ultimate to handle well. Also, the 11 inch MBA is on average less than .5 of an inch thick, and is less than .1 of an inch wider than the iPad, for heaven's sake! It is nevertheless a powerful OS X computer. I am only sorry that my needs eliminated it from consideration. If I didn't already have an iPad I would love to have an 11 inch entry model MBA to do the things my iPad does.
For somebody who plans to use another computer a fair amount of the time, though, I think the 11 inch Ultimate would be the perfect choice. I doubt if there are many, if any, scenarios that would be too demanding for the 11 inch Ultimate to handle well. Also, the 11 inch MBA is on average less than .5 of an inch thick, and is less than .1 of an inch wider than the iPad, for heaven's sake! It is nevertheless a powerful OS X computer. I am only sorry that my needs eliminated it from consideration. If I didn't already have an iPad I would love to have an 11 inch entry model MBA to do the things my iPad does.