We stayed at HGVC SeaWorld last year & plan to do so again this year. I found the rooms and the grounds lovely. We had a 1 BR suite with pull out couch, screened in balcony with ceiling fan, separate tub & bathroom, full kitchen, etc. We loved it. Since it's a resort the buildings are not connected to each other so you have to do a bit of walking depending on where your room is in order to get to the restaurant & pools but I don't find that a big deal. Full kitchens with DW, washer & drier in the rooms, assorted soaps and detergents provided as well. There is regular, daily maid service like a hotel.
No charge for parking, they will give you a parking pass. We didn't book a SW package but we did pay for the rooms and did not have to attend a time share presentation. We did get a call shortly after we checked in "inviting" us to a complimentary welcome breakfast with prizes, gifts and a short presentation but I just said that we would be too busy to attend anything like that and that was the end of it. No pressure, no need for me to be rude. I'm on my vacation that I paid for, I'm not giving them any of my time. If the gifts sound tempting & you want to take advantage of them it's totally up to you.
Also since the HGVC is a resort there are activities going on throughout the day as well as a kid's club on the premises so you can take advantage of those offerings.
The QQ passes can be gotten at the SW desk in the main lobby, to the left of the check in desk. You can make your shuttle reservations there as well.
I found the on site restaurant OK but the on site market does breakfast & deli sandwiches. There's a 7-11 & Bonefish Grill right across the street and there must be a ton of restaurants in the area...this time we're going to explore those options

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Have fun & good luck. Let me know if you have any questions about HGVC!