Sorry 1st topic is a complaint thread of sorts.
I have an AcuRite 5-in-1 system that has stopped responding (Purchased in June 2016). Symptoms were increasingly rapid battery discharge. I purchased the replacement bridge after AcuRite terminated support for their legacy bridge (still bitter about that). The sensor fails to recover after battery replacement now.
So I am trying to decide if I will keep with AcuRite and order the most recent sensor (Atlas) or ditch it and get a Davis / Ambient / Tempest.
I can relate. I have a 5 in 1 that I put in service in January of 2016 but so far it's still working fine. I bought mine at Costco ($60 on sale at Christmas) a year later they ran the same sale so I bought another one. I wanted a second display and the Costco deal was $10 cheaper than a display alone from Acurite.
Like you I'm still bitter about having to replace my bridge with the new access. I wonder how much business they lost because of that?
All that said I've been reasonably happy with the 5in1. I have a spare 5in1 unit so hopefully I have a few more years. I've also added a bunch of other sensors around the house to monitor temperatures and water in the basement.
Anyway here are my thoughts on your situation.
I'm not a big fan of the Atlas so I wouldn't consider it. One reason is I have 2 5in1 displays that would be orphaned.
I like the Ambient (or some other clone) so I would definitely consider that.
I would also consider replacing the 5in1 with another one. The bonus is you'll get a second compatible display.
I'll be curious what others have to say. I know Davis has a lot of fans but I'm not found of their displays. Like you my wife likes the local display.