I bought a Boyd's stock for mine. It was very affordable and importantly, adjustable so that my kids could use it with a proper fit. It's butt-ugly, and therefore has none of the mentioned "problems" of the factory stock. The factory stock is beautiful and traditional looking, but the comb is not high enough for a scope and the Grendel version does not come with irons. The Boyd's stock had an adjustable comb that works fine for a scope, but again, looks ugly. The 527 has less drop at the heel than traditional rifles, but there isn't a production bolt-action rifle made today that doesn't. For a Grendel-chambered rifle, that's fine since I'm unlikely to be shooting it off-hand.
The only real issue I have with the 527 is the inability to practically single-load cartridges. I had a lot of good experience with a Mauser and a Mdl 70 and so I was determined to get the mauser-style action in lieu of the Howa's push-feed. I don't regret that part, but unlike the M98 and the Mdl 70, the 527 has a DBM that makes it impractical to load the magazine without detaching it first.
The only real issue I have with the 527 is the inability to practically single-load cartridges. I had a lot of good experience with a Mauser and a Mdl 70 and so I was determined to get the mauser-style action in lieu of the Howa's push-feed. I don't regret that part, but unlike the M98 and the Mdl 70, the 527 has a DBM that makes it impractical to load the magazine without detaching it first.