Had a dilemma on where to spend my hard-earned on payware this month (having already nudged into the red with RSC's Class 70...) and it was down to a toss-up between this and RSC's S&C.
I finally went for this, probably due to the predominantly positive feedback, partly due S&C not really appealing to me at its current full price (I'll wait for a sale) as well as the really rather nice freeware version we've already got, and possibly subconsciously, due to the drip-feed of sponsored banner-ads on this site for SECML
Not going to do an in-depth review, at least not yet -- I've only run through a single scenario thus far, the full schlep from Dundee to E'burgh -- but the route is nicely detailed, well landscaped and performs quite well on my older rig. Oh, and the trip in a Voyager out of Dundee over the bridge across the Tay as my first foray was a very pleasant experience
If I have one criticism it's the lack of transitioned curves and superelevation and whilst I appreciate that this project began a long while ago, before such things were possible, for me it's a case of once having tasted butter, not wanting to go back to margarine -- it's *very* noticeable on some of the 80+mph switchback curves South of Dundee.
Few other minor niggles such as a level crossing with disappearing cars at it and a foot crossing which stops in the four-foot, some very slow aircraft (stall speed must be astonishingly low

), some very quick boats (a very rapidly accelerating lakes cruiser) and a serious flood in Burntisland, all of which I hope can be fixed, but given the scale of the project, it's a bloody good effort.
So, as a personal score, I give it 8/10, those two "missing" points being down to the aforementioned lack of s/e and the few niggles.
Cheers, Rik.