Swift Flight Form

The Swift Flight Form quest line is well documented and there are even complete guides out there. From personal experience I can give the following advice regarding preparations:

1. You'll need the Artisan Riding skill in order to start the quest line. Say "bye bye" to 5k gold :)
   
2. Prepare around 1-1.5 hours for doing the chain up to the Chasing the Moonstone quest (#15), which is the last quest before having to do Heroic Seth. Halls. At least this is what it took me. A lot of it is flying around and I also spent some time going to IF in the middle of the quest line to buy some of the below elixirs. Buying everything before starting will save you time.
3. 10 Ancient Lichen and 10 Dreaming Glory for quest #2.
   
4. An Earthen Elixir shouldn't cost too much and is a big help for quest #11. Buying a nice battle elixir to boost your DPS should also help.
   

I can't talk about the last 2 quests because I haven't done them yet, but here are my impressions from the first 14 quests:

• One of the most fun chains I've done, these quests will use your druid skills to the max. One note is that it seems that as a resto you'll have some problems soloing this chain from what I've read, better bring a friend. As a feral all stages were fairly easy.
• In quest #2 I wasn't ready for the explosion and before I had time to shift to flightform I hit the ground and died. I would say about 50-75% of the plants exploded so be ready with that quick shift to flightform.
• I wasted 10 min in quest #4 because I somehow missed the spirit. When you return quest #3 don't follow the man to the alcove, follow the spirit outside! Bloody annoying :( Otherwise just make sure to cast an occasional HoT on the ghost as he really does have very low HP.
• Prowl worked well for me in quest #9 just make sure to prowl right up to the bird before casting the net since as soon as you start casting to and become visible the birds will try to fly away (and they are fast). I didn't think of pouncing and stunning the bird before casting the net but as it turns out I didn't need to, the first cast was good enough :)
• I did exactly what wowhead suggested for quest #10 and except for a few mobs I didn't have to do any fighting to this part.
• I used bear form for quest #11, plus the Earthen Elixir and Demo Roar for reducing the damage from the adds. Worked great.
  
• Cat form for quest #12 worked very well, I used Maim as suggested in wowhead to interrupt his knockback spells but otherwise I let him cast since I didn't want to waste my rage or combo points and not have enough to stop the knockback. One time I had enough combo points (stun was long enough) to shift out and heal myself, so really was a pretty easy fight even though I was a bit slow (had 11 debuffs on me at the end :)).
  
• Used caster (Night-elf) form for quest #13. Naturally #13 was the hardest for me as a feral but if I managed to do it with my crappy caster gear, I guess anyone can :) However it really is important to keep him rooted at all times, he hits hard in melee! Also make sure your gear gives you enough mana, mine (with various cloth pieces) gives me ~9k mana which was enough. He resisted my root spell several times so I had to heal myself quite a few times but again went smoothly.
  

Quest 15 should be doable/easy, I plan on using a Free Action Potion just before the start, as I don't have the PvP trinket. As for heroic Seth Halls, I've seen it done enough times to know what to expect. Will be interesting to see if I can tank it though...