As a technical writer, I cannot tell you enough how distracting and unprofessional it is to have a website full of writing errors. If you have a friend who happens to have an eye for it, definitely let them do so. It is nearly impossible to tech-write as the creator of a document, website, etc. Always get another set of eyes.
And to definitely follow up with Chem, CURRENT schedule please, along with pricing. I have looked up so many studios for dance, aerial, pole, etc, and many of them do not list a current schedule?! If one is going to maintain a website, you need to keep it current. Because when the bottom of the page shows that it hasnt been updated in months or years, I don't bother. It doesn't need to drastically change all the time or anything, but definitely should reflect the current schedule, pricing, and staff.
Also photos and video are also important. No instant loading video for sure, and keeping video short, ie around 1:30 or so helps to get a feel for the studio and teachers, but doesn't get too long. I love to see photos, but no need to have a full on resource gallery... just a few of the instructors doing some of the moves, and if possible of a class or two. I know I kind of like to see how many people can be in the space and what they are wearing, etc. But I do realize that sometimes classes aren't ok with photos so I understand that. One thing you could do is have a time slot to get photos and have any one who would be ok with having their picture on the website show up.