I just did a Tier 1 today (Magikarp...remember that I don't have a Gyarados yet?)
Anyways, I got 1 Golden Razz Berry...that's it. 0 Rare Candy. Maybe 1 revive, but my kid tapped my screen so I couldn't see what else...Definitely no TMs.
Honestly, I think spending a pass on anything less than a 3 is a waste...(unless you need the dex entry).
I've done 2 Tier 2 raids and got all of 1 rare candy so far...0 TMs of course.
My problem currently is there doesn't seem to be that many people doing Tier 4 raids so a waste of a pass if you can't win. Maybe I need to be "social".