I actually listen to more of the Sammy era than the DLR era, but I love both. I'm a sucker for AOR, so the Sammy stuff still does it for me.
5150 though is a tricky listen for me. Love the songs but the production kills me. The keyboard-driven tunes Dreams and Love Walks In sound fine, but the guitar driven stuff sounds somewhat awful to me. Not crazy about Eddie's sound on it, and Alex's drum sound is quite frankly awful. The production hasn't aged well on this album. I'd love to hear a remix/remaster.
Sound-wise OU812 was a nice return to form though the songs aren't as strong as the previous album. Then For Unlawful Carnal Knowledge kind of went to another unappealing guitar sound. That shimmery harsh sound. But the songs are great. Balance is an OK album with sky high production values. Bit of a mix of old and more modern Eddie sound. Probably the album that from a production sound point aged the most gracefully of the Sammy albums but by that time in the 90s every album coming out sounded great.
I'm going to listen to all the Sammy albums today at work cause watching the Amsterdam video above got me in the mood.