In my opinion, any modern reef-ready tank should run a bean-animal drain. As far as I could tell, most WBs were drilled to only have two drains, not three that is required of a bean-animal. It is a no brainer to make the overflow box 2" wider to incorporate this. Plus a few other things like no leveling mat and sub-par stands that are usually only noticeable to experts or those with OCD like me. Personally, I would go the cheaper route of IM or upgrade past the WB. For only a few more dollars, you could get something of much higher quality and customized. Since you're interested in going sumpless, I especially recommend the AIOs from IM, just make sure to measure your equipment thoroughly as to make sure it fits. IM tanks usually come with a net top, too, which is a plus.