Renting an apartment in Tallinn Old Town comes with a few quirks a hotel never mentions. There's no front desk, no lift, and your key waits in a lockbox instead of a person's hand. None of it is complicated once you know what to expect. Here's what guests actually ask before booking, answered plainly by hosts who manage these apartments every week. At a glance: Check-in: self check-in from 15:00, arrival code sent 1-2 days before Check-out: by 11:00 Elevators: rare in Old Town — expect stairs Smoking, pets, parties: not allowed Parking: limited and usually paid — arrange ahead Longer stays: me…