It is tiny, like Lappeenrathna itself, but a cozy station. There is a cafe where you can sit and relax while waiting for transport, or you can leave your suitcases at the bartender for 2 euros and walk around the city.
Imatra is more colorful, the fact of the proximity of the border with the Russian Federation affects, there are many tourists, the atmosphere is not the same as in Kouvola, for example. Imatra is more pleasant for me personally