I ordered one size up as suggested, and the fit was just right.  I suppose if you want them to fit really tight, or not wear socks, you could order your usual size.  But, one size up was perfect for me, and I can still tuck my pants in.  The boots seem to be very well made, warm and feel great.  I like the more durable textured sole as well.  It's definitely not going to crack like the regular sole has been reported to do.  The price was right here at Amazon too.  Give them a try, I don't think you will be disappointed.  (well, unless Uggs is what you really want).  I also waterproofed them prior to wearing.