Getting into tubes

I'm thinking about getting my first tube integrated amp and been reading all I can about them. I've narrowed my list of manufacturers down to four: Raven Audio (Blackhawk/Osprey), Primaluna (Dialogue Premium), Ars Sonum Filarmonia and Decware (Zen Mystery Amp). All have their pros and cons. First, a bit about my system:

Merlin TSM Black Magic Edition
Sunfire True Sub Mk2 (and oldie but still runs well)
MSB Analog Dac 
Macbook Air streaming Tidal through Audirvana
Spectral SDR-3000SL running into the MSB

Room is small, about 10 X 11. I listen to jazz ( mostly trio's and female vocals) and some classic rock. 

My laundry list for what I'm looking for in a tube amp is as follows:

1. Obviously they have to sound great. From what I've been reading, seems like all these amps all sound fantastic to various individuals that have used them. 
2. Ease of use: self biasing tubes. Don't want the fuss of having to bias the tubes myself. I know that with the Decware ZMA, you have to bias yourself but it appears to be a simple process.
3. Overall build of the unit. Each of the manufacturers all look to have excellent build qualities. I've seen pictures of the insides of all units. Looks like the Primaluna is built like a beast on the inside. Also the ZMA is all point to point, no circuit boards of any type. That's a big plus.
4. Remote control: now this is a semi big one for me. I do a lot of late night listening and am constantly changing the volume. Raven Audio and Primaluna checks this box off but the Filharmonia and ZMA doesn't. However I have a DAC (MSB Analog) that has a volume control built in that I believe may work?
5. Subwoofer output. It would be nice to have a dedicated sub out for ease of connecting the sub. I know that there is the option to connect the sub through the speaker level inputs, but I have read its difficult to do that with the Filarmonia and ZMA if the spades are too thick. 
6. Reliability and after care service.

For those that have experience with any of these amps, any advice would be greatly appreciated! I've been going back and forth trying to decide. Thanks!
@brotw I appreciate your input on the Raven and Line Magnetic amps. Both have great reviews all over the web, would be nice to be able to audition them.

So my first step to auditioning tube amps is to attend the LA/OC Audio Society meeting on March 18. Its going to be held at Upscale Audio in southern California. I will be able to hear many tube amps and apparently there are going to be several shootouts between several tube manufacturers. Looking forward to the event and will give my impressions after I attend!

I jumped the gun and found a used Primaluna Prologue 5 here on Audiogon for sale yesterday. Obviously its not an integrated amp and doesn't have a remote or sub out. I can get around that by using my dac's volume control and am planning on hooking up the sub through the high level outputs. 

I like the fact that I will be able to tube roll, adjusts bias automatically and has tube protection. Most importantly, it didn't break the bank! 

Its coming this week so I'll post my impression when I get it in my system.