As for the classes themselves, they almost all play like slower and slightly less interesting versions of their Legion counterparts. This is thanks in large part to the loss of one ability from each class that came along with Legion’s own AP dumping system: the artifact weapon, which added a unique ability to every spec in the game. The loss of these abilities left most classes feeling frustrating and incomplete, and though Azerite gear was supposed to be the replacement, it missed the mark completely. There will always be one Azerite trait that reigns supreme for each spec, meaning that the frustration of that particular loop will be unavoidable as long as the system is in the game.
Tinder is great because there are often times where you are not casting Fireball for prolonged periods of time due to moving from area to area. This talent will make your first Fireball on almost every new encounter do more damage, and be extremely quick. Combined with Firestarter it is a guaranteed Critical Strike, giving you Heating Up, which you can then follow up with a Fire Blast giving you a Hot Streak instantly on almost any new target you fight.
Be warned that players will occasionally list items in the Auction House that are sold by vendors. This typically applies to limited sale quantity items or items in remote, harder to reach locations. Items from Outland that advance certain skills (such as books for training Cooking or First Aid past a skill of 300) are typical. These items are notoriously listed for 2, 3, or even 10 times their vendor purchase-able price. Using an add-on such as Auctioneer Advanced can forewarn you of such a tactic. You should ONLY buy such items if your server is so full and busy that you simply are unable to acquire the item on your own. Otherwise, wait for the vendor to re-stock (usually takes about 20 minutes to 1 hour depending upon the vendor). You'll save yourself a considerable amount of money. See Buying Items from Vendors for Resale below for more on this.
Back in the days of Burning Crusade, leveling up your character was a very tedious procedure. The quests were not even shown on the map, you always had to read through the quest list and figure out where to go and what to do (which mobs to kill, items to retrieve, etc.). After a few more expansions, questing became a little bit easier, due to the quest chains being more linear. You can pretty much follow the main quest storyline. Also, the map became more interactive.
Although the Battle Pet Trainer will only offer to teach you your race-specific companion, it is possible to add all of these pets to your collection. You can either find them in your faction’s auction house or you can create a character of the race whose pet you would like to learn. Using your new character, you can seek out any battle pet trainer in major cities. After you learn the pet, you can delete the character; the pet you learned will not be removed from your collection.