Pros
Entry-level employees do important work, are involved in products submitted to clients/regulatory agencies, and are valued for their input. More tenured employees do not keep their experience secret, and share their knowledge when asked. Stable industry, air regulations are over-complicated and impossible to navigate without help (intro Trinity Consultants!).
Cons
Not a lot of formal training (all on-the-job), which can make accomplishing work succesfully difficult. Performance is, on a company level (office managers are more understanding), is largely based on achieving 90% billable work, which (1) may not be up to you (no work that you are capable of, as an entry-level, (2) you can't ethically bill (entry-level, you require a lot of training, spend a lot of time spinning wheels someimtes), (3) by the time you use the restroom on occasion and need time to respond to client/supervisor/peer emails, 90% is not feasible without 45-55 hours of actually work-time. If you are a hands-on kind of person, you will not enjoy air consulting, as you rarely (if ever) get to see the fruits of your labor. It's all kind of ethereal.