Godfrey, I downloaded the IP app, but have not used it. I have an Epson flatbed right next to my desk, so I have been using that to scan the Polaroids.
I have a Spectra2 and a Spectra AF. I prefer my SX-70 because of manual focusing, but sometimes it flares pretty bad in bright sun, and it does seem fragile. My SX-70 is an original Classic SX-70 from the beginning, before they put straps on them, so it is even more scary to not have a strap to hold onto. I had Matt Widmann of 2nd Shot check mine out, so it is working like new.
If someone is looking to try Polaroid, a Spectra might be the way to go. The Spectra 2, I've had for many years (since new), but I got the Spectra AF for less than cost of a pack of film, on Ebay. I've heard of the Minolta Spectra Pro, but have not tried it. I'll watch for your photos from it.