Did my bottling last night, finally. In comparing numbers, I'd used 6 lbs of LME not the 6lb 9oz that the original recipe called for. I had a 1.052 as an OG, and Brewer's Friend calculated it with the fermantables I had as 1.057 with a calculated FG of 1.015. Given that I had to top up 2 gallons of water, I can live with that.
FG at bottling was 1.012, which puts me at somewhere between 4.99 and 5.91% ABV, depending on which OG and FG I use. Either way that's good by me.
With 3 Cinnamon sticks added near the end of the boil, cinnamon is definitely there in the aroma. There is the taste of cinnamon in the beer but it's really subtle. If I didn't know I'd put it in, I wouldn't have been able to independently detect it in the flavour.
After bottling, there was about a 1/4 glass worth of beer left so that was my tasting sample. Uncarbonated, mine and my wife's opinion was that we enjoyed the taste so much we'd drink it flat. I'll give it about a week and a half to carb and then try a sample bottle and see how it's going.