Not sure if anyone still read this aged topic. Anyway.
I have burnt few packs of Fuji Instax Wide on the 210, the color was great but, the color vividness came out best under strong sunlight only. I failed to shoot indoor with it. One problem is the metering system is unknown, whether it has metering at all, or basically shoot at 1/125. Secondly, the internal flash is not powerful enough to cover the frame, and I am not sure what sync speed I can use to match the internal flash with the monoblocs. I am happy to use it outdoor as a proper camera but only a toy while indoor.
With the Fuji peel aparts, I will look at the temperature and time of seconds with every shots to the right timings, but someone told me the Fuji FP-xxxx instant films will stop development process automatically, which means I can shoot several packs and peel them all together later. I haven't confirmed its true or not. If anyone tried please let me know.