There's a few diffrent brands out there similar to this one. I I like the idea of solid state relays and wireless control. I just have a hard time justifying the price and if there's an issue, your buying a new unit. The warranty is only good if the company is still around in a few years.
I looked at the brand you posted. My concern is they state "water resistant". Others I have looked at state water proof. The only concern here is, some of the areas I go to, the dirt is high alkali. The dust gets into things then add moisture and you have corrosion.
I would really like to talk to someone who has had this type of controller for several years.