I had lansinoh bags and every single one leaked.. so I got ziploc bags that are for liquids and they worked so well! cheaper and held together better for me.

I've gone through alot of lansinoh bags and they work wonderful , I recommend em

I never freeze in more than 2 oz at a time.

I really love the NUK brand ! I also bought Lansinoh and those are decent as well. I found a 50 count box on amazon of NUK brand for 5 dollars and change so I bought 4 of those so I'm well stocked for now (:

I use the Target brand and they work really well.

I use Br'us brand and haven't had an issue yet. I also haven't froze any and thawed