Refurb 2015... Which model?

So far, everywhere I read, the 1.3Ghz does not provide any significant performance. Get the 1.1.

 

Your workflows are pretty wide and vague, so it's not really possible to say.
All i would say is the 1.3 is pretty much the same performance as last years MBA, so it's more than able to handle what you want. 1.3 will be a jump over 1.1, but run to your local store and give them a test drive, see how they feel to you.

 

My advice would be, if you can afford it then get the best spec you can. Over the longer term you will have the most enjoyment and eventually the best resale value. But as with all these things, don't overspend if you have bills to pay!

 

Go for the 1.3 if it has 512 GB SSD

 

Basically, the refurb options in the US are:
1.1/256 for $929
1.3/256 for $1149
1.2/512 for $1189
1.3/512 for $1319

I'd first consider your storage needs, then choose your cpu. You can always wait for a slightly slower processor but it's tough to fit 400GB of stuff into a 256GB system.

If the model you want isn't in stock watch refurb.me (note it looks like they mislisted a Silver 1.2/512 as 1.3/512)

 

I don't know if UK Apple stores have different stock, but all 3 local Apple stores near me only have base models for display. The only thing different is the color!