I’m on an Aeris now (ML at 5ft 10″), from my 2016 Medium Remedy which was too short for me (nearly 10cm shorter than the Aeris). Albeit the new remedy is definitely different to my slightly older one, the remedy was a lot more playful and capable riding up than the Aeris. You could actually attack the climbs a bit whereas on the Aeris I settle in an easy gear and spin up.
It was definitely a bit sketchier on the descents- the Aeris can plough over everything. I think the bike needed to be worked a bit more, but was really rewarding as it was easier to pop off stuff, hop over roots etc whereas the Aeris seems to prefer to plough over things. I think a lot of that is the extra length- being further over the front on the Aeris due to the extra length makes it harder to bunnyhop. I personally think my ML is a tiny bit too long, and the bike would be a bit more fun a bit shorter, but the length and slack head angle definitely gives is great stability (and I’ve never gone OTB, which I used to do on the remedy all the time!). The HA on the Remedy was always a bit steep too
Maybe this depends on your riding style; if you can pop and hop over anything on the trail that’ll slow you down I think the remedy would be great. If you prefer to plough on through the Aeris might be better suited?