I find the ardents fast rolling and predicatable, I have a tyre fetish and changed models for years until I found my favourites – Nevegals, which were then swapped for similar but better made Panaracer Rampages and now, Ardents. I find the Ardents ride a lot like the Rampages – excellent in dry, gippy enough in wet and really good on trail centre/man made stuff. Never had any durability issues either – they have a wide carcass and have taken a pounding on my beefy hardtail down some pretty rocky scottish mountains. Only pinch flatted once in a year (compared to 6 times on my pinch flat resistant rampages!)
I would totally recommend these tyres – fair enough, its a shallow tread so not ideal for gloop – but the clear quick and if it gets really sloppy then you need to fit a Panaracer Trailraker (which I do from November to March!)