Considering the Citadines Lille Centre in Lille?
A VT member wrote the following comment about visiting Lille:
Eurostar by bonio
Eurostar trains from London, Brussels and Paris stop at Lille Europe railway station. It's close to the centre and just 5 minutes walk from the other major rail station, Lille Flandres.
Convenience is the name of the game here, only 30 minutes check in is required, security is good though, all luggage is scanned.
Trains are large and comfortable and all seating is reserved.