The Exo3 was Planet X breakthrough TT Tri bike before they stropped producing TT bikes.
This bike was a typical Planet X super-(bang for your buck)-bike.
Several other bikes bought the mould for this a year or two later and charged almost double the price that Exo3 was being sold for.
This particualar bike was owned by an athlete who injured his knee and never had a chance to ride. It literally has less than 50mil on it and you wouldn't even notice that. The cassette and chain have not been changed and they look new.
It's got the Selfcof Delta wheels on it and it Race Ready.
The sizing are a little small so in my opinion the the Size would fit someone 172-178cm depending on torso/arm length.
Here is a review from Triathlon 220.