OK, listened through them:

Seattle Sections: 59 seconds

Surprisingly familiar! I bet they are a larger version of the Motif's "Orchestral Strings" - maybe with a similar problem: sounding very good via headphones, but a bit spherically synthetic as soon as, via speakers, there is no full stereo separation.

Solo Cello: 1:41

Good, however solo cello is good on many recent instruments.

Strings & Brass: 2:12

Probably very good, but if the brass come through this sharply, the way of playing makes it a bit unreal.

Orchestral Horns: 2:45

Better than the Motif ones, but still, I like those from Roland SRX 10 and the Korg M3 Brass&Woodwinds expansion better. These ones sound rather 'open', as often used in Hollywood soundtracks, whereas the SRX 10 and M3 ones sound more classical.

Pop Brass: 4:12

Sorry, sounds artificial here.

Pizzicato: 5:01

I'm happy with all pizzicato strings I already have, IMO not a very demanding sample

Woodwinds: 5:25

Very good and lively

Oboe: 5:39

Not an Oboe expert, but definitely more lively than the Motif one.

Clarinet: 5:51

Very good, but again good in many instruments, and no sampled vibrato here (can have pros and cons)

Latin Flute: 6:09

Great. The thrill seems to be a kind of scripting, i.e. a different sample is triggered by playing 2 notes. But this is no modeling feature, so I don't think it's like SA2.

Tenor Sax: 6:40

Good; basic sound of the sample very much like the newer tenor sax of the Motif XF

Soprano Sax: 6:58

Heard better ones.

Choir, Strings, Pipe Organ (together): 7:42

Choir is very good. Pipe Organ as far as I can isolate it acoustically, does not reach Hauptwerk level - and I have a Hauptwerk sample in my Garritan GPO (but only a 'plenum organ' one).


So, what's my summary here? - Everything audibly better than in the Motif, but not everything is necessarily better than in the Integra or my MoXF libraries. The strings are surprisingly similar to the former Orchestral Strings, probably bigger samples from the same sampling session.
Just assuming that this is everything of importance regarding orchestral sounds, my decision once again would be: I'll take it if it comes out in the shape and weight of a MoXF, preferably without the FM-X engine for a reasonable price. For the instruments I'm interested in, the Kronos with its options for special libraries really offers more, but again, only a lightweight version would be interesting for me.
High level of sounds, but I just doubt the Montage provides you with the aha effect regarding orchestral sounds you would wish for when already having used several Motif libraries AND the Integra.

P.S.: I'm opening a new thread about the problem of assessing the sound quality versus realism of a sample...