Not only a beautiful building but it is well kept, clean, secure (typically see 3 armed police…read morestrolling around) and many services for the locals and travelers. A very well stocked store open from early until 9:30pm with everything your heart could desire - including (very) fresh produce, wine (of course) and everything else - also a GREAT coffee shop and patisserie.
And oh yes - the trains - plentiful and reliable. Paris is 1 hour 45 minutes away and (on Saturday) 2 trains an hour (more during the week I think). In first class a comfortable way to travel - and regardless of class, a green way to travel.