These symphonies are not top drawer Haydn. The Alleluia is the best of the trio; its kinetic first movement certainly makes an impression. L'Imperial was famous in Haydn's lifetime but its attractions have withered ever since. The Loudon is a sturdy drums-and trumpets affair with no profundity.
Sadly, Harnoncourt was unable to replicate the success he had with the Hornsignal, Fire and La Chasse (Haydn: Symphonies Nos 31 Hornsignal & 59 Fire & 73 La Chasse). The reverberant recording does not help. His performance of the ceremonial Alleluia is exemplary but he fails to impart much charm to L'Imperiale. Matters go awry in the slow movement of the Loudon; its opening sounds like a parody of the 'Karajan soup' with extreme legato (the lack of articulation is phenomenal). If it were an LP, one would think that the needle had slipped.
In short, this Alleluia is highly collectable. Look elsewhere for the other two symphonies. Kuijken's 53 is imbued with more charm Haydn: Symphonies Nos. 26, 52 & 53, and Marriner avoids mishaps to deliver a stunning performance of the Loudon (which is only available as part of a complete set Haydn: 29 Name Symphonies).