I've been kicking around the idea of adding a filter roller to my reefer 300 G2. I really don't like all the tech on the reefmats along with problems that I keep reading about so am considering a bubble magus medium. I'm seeing gen 1 models being reduced to $170 while the gen 2 are $250. I don't not know the improvements made but am curious if those of you that have the gen 1 have regrets? For reference I can get a medium gen 1 for $170 and the gen 2 is $250. Money isn't the deciding factor but I also don't want to spend more than needed if the improvements aren't worth it. TIA