Most new appliances are garbage

That said, we recently got a stacked unit and are very happy, electrolux brand. We have had good luck with them for washers/dryers.

In stacked units IMO the biggest thing is where the controls are. "stackable" units usualy have the control panel on top still, which can be out of reach of a lot of folks. The benefit is you can separate the washer and dryer should somethibg go bad. Combo units put controls in the middle and are a bit more compact. Also, for washers I prefer side load but you can go either way. The top load washers can be a little cramped as the lid usually opens 45 degrees. These tend to be cheaper though.

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth