I don’t see why aegismax is good value. $157 G2 med (medium length) is 18F (28F comfort) 1006gr = 2lb3.5oz bag, no warranty. I believe their ratings are not overrated. I’ve heard some murmings of 800 fill down.
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Rei bags below ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
synthetic bag is $103 2lb 12oz 20F bag. https://www.rei.com/rei-garage/product/159785/marmot-waldron-20-sleeping-bag
$269 down 1lb 10oz (737grams) 25F bag https://www.rei.com/product/111165/rei-co-op-igneo-25-sleeping-bag-mens more expensive, but aegismax g2 is 37% heavier. Thats A LOT. You also lose 7 degrees withich is not insignificant.
$179 19F 2lb6.6oz (1094g) 600 fill power down bag https://www.rei.com/product/147927/kelty-cosmic-20-sleeping-bag-mens. Slightly heavier (8% heavier), same temp, name brand, warranty.
$369 16F 1lb12.2oz (799g) 850 fill power. https://www.rei.com/product/148248/rei-co-op-magma-15-sleeping-bag-mens. The aegismax is 26% heavier which again is big. It seems like the aegismax is closer to a 650 fillpower bag in warmth to wegiht ratio/ or it’s lesser designed to get less efficiency (insufficient zipper cover flap?)

Honestly, the $269 bag is probably the best value of the bunch due to the massive weight savings.