This is a great idea, but the race is quite overpowered (loads of new spells and abilities, more than comparable races), and the formatting is weird and a tad ugly. With some tweaks, this could be a keeper. I look forward to revisions

Really great. I hope the author adds the pdf with other 4e monsters, grouped by theme (rather than source). I'd pay a lot for such a product. The price now is fair, to the cheap side, considering the large number of monsters.

Don't buy. Specialist priests are great, and that why it breaks my heart that this product is very disappointing. Not having a preview (always a warning sign), I took the risk to buy it anyway. Well, it's very vacuous. Every god gets a feat: 75% of the time this is one cantrip and two domain spells, and that's it. There are two problems with this: first, it's weak for a feat (you're better off taking the magic initiate over this), second, it has the prerequisite of cleric which defeats the whole point: in 5e, every class (with the acolyte background) should be able to acquire the feat and get some use from them.

Now, advice: the Auril and Talona feats are decent and flavorful, so for rewriting feats, these are a good starting point.

Specialist Priests are awesome and easy to convert, as it's just creating a feat and adapting 'Faiths and Avatars'. I will happily pay for a thorough product doing just that; this product ain't it though.

This product alleviates one of the central problems of 5e: clumsy NPC blocks with page flipping. The conversions are really good. I hope to see a wider range of spellcasters by the author, and will gladly pay for them. The only minor problem is that the archmage has some spell references left: perhaps the rest of the white space on the page could be used to write those down too.