Two in-finder displays are difficult to read at the same time. Waist-level finder is not available. Honestly, I'd recommend EOS 1 as a starter camera to anyone willing to shoot seriously with Canon gear. It is that dependable. Due to considerable weight and soft mirror action, EOS 1 fits very well for avaiable light shooting.
Camera is very easy to operate, all controls fall directly under fingertips.
In other words - shooting with EOS 1 is fun and results are beautiful. In practice, it works quite well if you have an idea what to do. Designers put an enormous reserve of reliability in these cameras, so EOS 1's will actually outlast most brand-new middle range cameras. An absolute tank - metal body, sealed. No worries even in hard conditions.