It is really pretty easy if you have the right stuff (at least waxing and quick sharpen touch ups are pretty easy. I admit i've never gotten involved in deeper stuff like base grinding and repair etc).I do a full tune at the beginning and then wax myself as the season progresses. If I need I quick sharpen I drop into the shop at my local mountain. I need to learn how to do edges and get those tools. Doesn't seem like rocket science... Any suggestions?
Do some searching on youtube for swix tuninig / waxing videos and there is a ton on there.
A lot of times shops will have the swix rep in for tuning clinics etc.