Lurked on this forum for a bit and got a lot of help, so I just wanted to contribute one more data point to help people in terms of sizing and my opinion of the boots. A few months ago, I ordered a pair of chelsea boots from Asos (you get what you pay for. I did not like the shape, they were uncomfortable, and just flat out did not like them. So I returned them for a refund).
I ordered the Tan Chelsea Boots size 41 from Story et Fall on 09/02/15. I received them via FedEx yesterday 10/20/15.
The customs fee was $27.32 and I live in Los Angeles, CA.
I wear 9.5 in retro jordans and other nikes (including flyknits).
I wear a 9 in nike rosherun, adidas (stan smith, 350 boost), new balance 998.
When I used the sizing guide that Lian sent, my feet probably ended right in between the 41 and 42. Ordering the size 41 was the correct decision for me, it fit nicely. Not too much wiggle room, but if they are supposed to stretch a bit and supposed to be "broken in" they should fit perfectly.
The packaging, as others have mentioned, is nice and the personalization is also a great touch. Also, the quality is definitely there and in my opinion, is a well-constructed, and well-crafted pair of shoes. Personal preference should dictate if you'd like to purchase a pair or not. I actually bought a pair of Common Projects Chelsea Boots (khaki) a couple days ago (size 42 - also fits nicely for me). The CP boots are much, MUCH more comfortable - which is primarily due to the heels not being as high, and because of the rubber soles. The SeF boots' heels are higher and the wooden material makes walking in them a bit more stiff (?) while walking in the CP boots seem more natural (almost as if you're just wearing a pair of sneakers). In terms of the shape, material, and color, I would think they are pretty comparable/similar (take this with a grain of salt, i'm no shoe-expert).
I do really like the SeF boots. But, I like the CP boots more. However, the CP boots are literally double the price (if not more). In that sense, I don't know if I like the CP boots ~$300 worth more (if you get what I'm saying). With that said, my plan is to probably go exchange my khaki CP boots to the grey color, and keep the tan SeF boots. UNLESS, I can find somebody who wants to purchase my SeF boots (for exactly what i paid + shipping).
Hope this is helpful to those who are thinking about making a purchase from Lian.