I’ve got the swap-out frame (previous incarnation). As mentioned, not the lightest frame/ bike in the world, but makes a good commuting/ touring/ general dogs-body bike.
Mines built up with an Alfine hub, dropped bars (bit of an filing edit with the swifter to make it fit on the wider road bars) Mini-V brakes, and the obligatory ‘don’t get a wet backside’ mudguards for commuting. 30mm slick tyres – could get a pair of 32mm in at a push without the mudguards.
Couple of downsides – the arrangement of the rear stays (on the swap-out frame) and the disc mount mean that fixing my Burley trailer has required an new drop-out bracket rather than the frame fix one, and fixing a Blackburn rack (which is needed for a specific child-seat) requires a bit of the rack tube to be trimmed to fit – if you don’t have kids this will all mean nothing and/or be irrelevant!!
If you want a reliable, stable commuter etc. just press the buy button!