Corporate version of MimbleWimble. The fact that there is a CEO, in this type of protocol it is immediately a grade shadier. Considering its origin as a grassroots protocol which is better represented in Grin, my personal preference is not Beam, however I do not consider them scammy shady either. Beware there is a 20% "tax" on the mining reward which goes to funding of the project, similar to the ZCash funding model, which is criticized a lot as a model within a large part of the crypto space. Because of its presumably better funding, dedicated team and commercial approach, this might theoretically and probabilisticly turn out to be better for speculators.