I think it is plenty bright(to me). It is my main display, coming from a Panny 50g10 as my main display and brighter than my Vizio P702uiB3 which is strictly movies/games.. I also have it in a Southern facing room with lots of sun light. I find movies excellent on it, HDR especially so. But this is my first set with HDR so I have nothing to compare it to. No games on it yet either. I watched Avengers Infinity War on Netflix and it looked surprisingly good for regular HD. Stayed up till 2am on Saturday night just looking at that movie heh(I need to get it on 4k). Even OTA Wheel of Fortune looked good, the numbers on the wheel never really showing motion issues. Football yesterday was fine, the only limitation being all the compression. Which was there on all sources; cable, Fox Sports app and OTA.
Pretty sure this one is not going back, but I have another week to decide. The more I use it, the more I enjoy it. From the sounds of it though you probably can't go wrong with either(this or H9F).
It is better to ask for forgiveness, than it is to ask for permissision - the WAF factor