Should you buy Schiit Audio's new Vali 2+ tube headphone amplifier?

Thanks to Schiit Audio for sending a Vali 2+ to me for review. The Vali 2+ (and Vali 2++) is a basic tube headphone amplifier that can power a wide variety of headphones.
Update: For those you wondering about the Vali 2++, it is identical, except for a different tube socket allowing a different range of tubes to be used. It's otherwise identical.
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00:00 Introduction
00:25 Video overview
01:35 Tube amp types
05:18 Vali 2+ features
09:19 Listening impressions
15:58 The Problem with Tube Amps
17:19 Thank you!