What a generous friend! Which one did he get you?
Brisket is my nemesis. I am yet to get either the meat or the rub correct. Our leaner beef isn’t as good as some proper fatty US stuff, so there is a lot of good info on FB on lean cooking, and braising etc.
I used the exact same batch of home made beef rub on short ribs and it was amazing. On the brisket all it tasted of was pepper. I do not seem to be alone on that one speaking with friends.
If you haven’t done a long / low cook before I’d start with a pork shoulder. Infinitely more forgiving to temperature fluctuations (although with an egg once it’s dialled in, you’re good).
Good quality restaurant grade lump wood is also a must for these things, especially the long cooks. You can never buy supermarket charcoal again!
You will also likely want a remote thermometer to keep an eye on bbq and meat temps. Especially useful for alarms overnight.
I have a MEATER, but prefer the old school ones. I’ve just bought one of these:
https://www.thermometersdirect.co.uk...ermometer.html
Which is my 3rd of this style over the last 15 years, easier to see at a glance vs having your phone on an app the whole time. At this price vs the cost of replacement probes I’m likely to order another as spares.