The SM300 grew on me over the last year, I am very much in the PO club (I own 3). I love my 42mm 2500 is my first and only love all others are compared to it.
That said the SM300 non LE was a nice watch that grew on me (the Speedy had the same issue and once I bought one I was smitten). But I am not a fan of PCLs they will eventually scratch and that spoils the effect for me - I am definitely a brushed metal man because I can fix marks on that myself with no dramas. So I thought about the non LE version and eventually discounted it for this reason and no date window.
But then they brought out the SM300 SPECTRE edition and I was instantly hooked. As a military man I have grown up with NATOs so I know what they are about plus the bracelet comes with brushed centre links. I have always been a fan of brushed metal work on NATOs (no reflection for obvious tactical reasons). The changes to the face are an improvement to me and the bezel was the only ? (but I am a divers man so I have used a divers bezel to time all sorts of things worst case I can swap it out if I wanted too) but I could forgive that small issue.
On the wrist the NATO is thicker than standard issue but that's due to the quality of fabric used and no biggy for me. It height is about the same as my PO 2500 or it does not feel as heigh as the 8500 even if it is. Weight, well on a NATO it's nothing at all.
I have bought the LE because for me it's a wearable investment and I do not see myself loosing any money on it. The Bond link is a nice touch. For me it will be a tool watch I will wear on a NATO most of the time because that's were it looks finest (I have plenty of POs on bracelets). It has the vintage pantina that reminds me of my first service issue watch I got back in the eighties (a SM300 with fixed Spring bars if only I had known then what it was before we swapped to CWC) so there is probably a bit of nostalgia there too.
If you get one I doubt you will be disappointed as I say for a watch I discounted for my own reasons (non LE) they fixed all the areas for me so it became a no brainer (especially at the price point I got in duty free)
I hope this helps and Good luck
PS here a shot on the bracelet
Here is a comparison shot all 42mms
The name is Bond, Basildon Bond I have letters after my name