Big Renaults can be tempermental and expensive to maintain... but the Laguna is comfortable quiet and smooth running....although 2L may be a bit underpowered especially if you are used to a 2.5l We've got a 3L Vel Satis the car's mostly fine and very comfy, if a little eccentric the computer is a bit odd and needs resetting regularly, a problem friends have also had with their renaults
Also be warned, we had a problem with our in-car stereo and in-car satnav, couldn't get them fixed except by a main dealer, We've had issues with Renault UK Birmingham quoting for what seem to be unneccesary repairs etc (Apparently we need a new engine and new gearbox....£12,000 car was fine in the Welsh mountains so we think not...)