it seems to me that for $30 its a good investment....and its trivial to attach.
i dont see why it would not be a good fit for any lead acid, sealed, agm or otherwise.
Oh if you already have the Iota then yeah it'd be a good call, I incorrectly assumed you didn't have either (which I didn't), my bad.
Its an relatively good fit but somewhat off my AGM's for instance, however it at least it errors on the lower voltage side which is a little slower charge but won't boil them out which is the side I'd like to error on.