Are these rods worth buying? I use large solid bags a-lot and like the small pack down size of those.

I wouldn’t touch them at all. 2.75TC is a little too weak for my liking, especially if casting large solid bags. If you want a good, solid rod that can pack down reasonably, then Nash Scopes are the answer, 3.5 stepped up TC preferably is what I use for all my carp fishing. They are a little pricey, but worth every penny.