B55 and lightweight platter lenco tables

I can't find any references to the B55 on here and am wondering thoughts on this model or other "lightweight platter" designs vs. the the heavy ones that most people get, like the L75. Is the performance difference such that these aren't worth it?

I think I've read that they have the same motors and idler wheels, and the difference is just the platter?

Any thoughts. I'm thinking of going to lenco route to replace my Music Hall MMF-2.

thanks.