The staff was very helpful with my project for insurance purposes through multiple offices in NYC. They can be somewhat overwhelming at first but once you get used to them they are great! I'm not sure how it works now, could have been improved upon when i did this study years ago!! Very friendly environment though! It's good that there aren't many other options out their if your looking into clinical research studies - just do it. You will never regret doing one because its so important as an entrepreneur/self-made person (in which case you're likely already aware). This helped me obtain coverage from numerous insurances companies who would otherwise cover some expenses of mine such as testing etc. Not only that for my marketing team we were able to utilize patient data/patient feedback to make changes within our product line up! We were also reimbursed by these insurers since all tests had premedication requirements within each drug class and we provided those meds prior too patients during the test process! Patient recruitment & retention. All aspects relating to recruiting participants and keeping track on a daily basis as opposed to monthly or quarterly surveys - especially regarding mental well being. The most amazing part of the company is they are always willing to support you in any way that they can. They are very knowledgeable in the field and are willing to help you with any issue. There is nothing I dislike about the company. I recommend working with them. The process of conducting clinical trials is very tedious and is prone to errors. This is where Parexel comes in. They have made the process much easier and are always willing to help you in any way that they can.