The Bestem is great bang for the buck, & I've not had any major problems with mine save in heavy rain. I had a bit of seep at one point.
That said I prefer my SH40 (Shad), it went across the country through serious storms, no issues. No brake light on though. They do have an add on you can put on the rack, or you can rig something yourself (kinda what I'm think'n).; however I've been having issues getting a (unnamed for now) dealer getting me the correct (non-cargo) variant.
If you decide to get one PM me and I'll name the dealer so you can choose someone else to buy from.
Cheers
Tromper