My wife is considering getting a MBA to expand her knowledge and experience of Macs and MacOS. During our research, we discovered that some people have reported the current model as being slower (SSD, I think) than last year's model. Given the quality of Apple's refurb programme, it's tempting to get a refurbed 13" MBA rather than a new one, especially if the older one is better than the current one.
What do people suggest? Is the older model "better"? And is the difference noticeable in real-world usage, or just in benchmarks?