When I made the first post in response to these heirloom bonuses, I was simply slightly disappointed in what they gave us. Now that I’ve gained beta access (still no access to the beta forum yet, like you, Dreadsurge), I went to try them out this evening on 3 characters with full rested XP bars that I copied to the beta (a level 25 paladin [60 on live], 25 monk [60 on live], and a 10 warrior [20 live]). Either the actual bonus effects are not yet implemented though they set bonuses show up on the flavor text when you hover over an equipped heirloom; or, they are mostly completely worthless, and I’m even more disappointed.
I imagine that the 3-peice out of combat regen may be useful at times, but I felt like incoming damage in the expansions I went to (BFA, BC, Legion) was even lower than on live and the regen wasn’t need at all and wouldn’t have been useful in the two normal dungeons (Freehold & Atal’dazar) that I managed to get into on the monk. It might be useful in battlegrounds, but I assume those are not enabled or no one else in those brackets queued, since I never got a game to pop.
The 2 and 6-piece bonuses might as well not exist with the pace of leveling. Does it take longer to burn through rested XP? Sure, but you still burn through it pretty fast, depending on what you are doing. I felt before that these rested XP extension bonuses should be another type of bonus, and now I really think they do: they are simply trash. I would prefer something like a movement speed buff, but really I’d take almost anything that wasn’t this.
I will admit that the 5-piece (it says 4 in the blue post, but says 5 in game) sounds nice—really nice on a warrior with the buff plus two crusader procs, I imagine—but it just doesn’t last long enough. I don’t mind if this one stays, as long as there’s some re-tooling of the buff length, maybe with a reduction in the primary stat buff percentage to compensate. A primary stat buff isn’t really needed with the ease of most leveling content, but at least it wouldn’t be useless.
However, I will note that the 5-peice primary stat buff never proc’d even once while I was playing on those 3 characters, even if the items are listing the set bonuses on mouse over. Maybe none of them are enabled yet, since I had hoped that the rested XP consumption rate buff was at least noticeable.