In terms of other projects, none are like SAFE, but there's some overlap.
Someone who's looking at all things good about SAFE may wait till the project is completed. Another may just use whatever works for him at the moment (for example Zeronet, Freenet, whatever).
My concern, as stated before, is that the window of opportunity is closing. Let's fast forward to 6 months from now, May 2016. By then some of those similar projects may actually become relatively user friendly and gain a growing following.
Maidsafe is a complete solution that solves several big problems in one package. That's a huge plus, but it must come out before those with a practical mindset start settling down for something else.
Related to that chart, I see 70% done. But 70% of what? Of alpha version? Is there a page which explains how these pie charts relate to the roadmap? The marketing move with changed names (dev bundles instead of the usual alpha, beta, testnet) doesn't help, it only makes people more skeptical.
I should add that I look forward to using SAFE, partially because I'm a geek. But, and I'm saying this because this is a trading thread, I may or may not buy a large amount of MAID (or SAFE, later). It has to work, and it has to have meaningful coin economics for the coin to recover in price.