I've interacted with 3 different EMRs during residency and fellowship, two I liked and one I despised.
In residency the child clinic had a self-designed web-based EMR that was seamless between ER, mobile crisis, home-based services, and outpatient care, including therapists and MD notes. It required a good bit of info to be put in for 1st evals, but effectively carried forward diagnoses into treatment plans, progress notes, and discharge summaries, as well had a copy note feature that was AWESOME. Under 5 min to generate a progress note.
The adult clinic, however, felt that utilizing an EMR based upon the vaunted "Duke" system was the best way to spend $. It took an hour to generate an intake note, each progress note required re-entry of the ENTIRE NOTE and needed you to make multiple point & clicks and opening up new windows to complete the minimum required elements for the note to save so that it took a good 15 min to write a stupid therapy progress note. The best part was that because it was a system generated by another institution, we got none of the requested upgrades or improvements during the first 2 years of use. It was only used in the outpatient unit, so ER notes, mobile crisis notes, and inpatient notes were not available in the same EMR platform.
In my fellowship training we have MEDITECH which includes scheduling, registration, and outpatient clinic notes. Inpatient notes are also available in a click, but the ER is still pen/paper notes. The best feature by far of Meditech is that we have a staff member in the building who is a trainer and upgrader for the software, so when I wanted an alternative progress note template she installed my template into the system within a week. It copies progress notes easily and if I can get a tablet PC I'll be able to do new eval notes within the session (50% check box template).