It's not very long, especially if you have very few ECs or research like I did, lol. I filled it out in probably 2 hrs. Also, submit as soon as its done, even if you don't have LORs or level 2/step 2 scores. Places will invite you for interviews without those items. It's not like the medical school application proces where your application needs to be complete before they review it. I know someone who submited their eras application on day 1 that included their ECs, research, personal statement, grades, and 1 LOR. They didn't release any board scores at that time and they still got 3-4 anesthesia interviews without any board scores.