Yeah the 70/80s are pretty boring sounding not bad sounding but packs no punch.
The cab itself is quite well built though, assuming you're talking about the GS412 cabs. They are not as tall, but deeper than Marshall 1960 cabs. Not as immediate sounding as the 1960 but has a much thicker sound. For £50 more I'd go for the TT412 cab if you want a Laney, if you like Vintage 30s that is. That said, usually you can get much better deals used so I'd look around first.