These wheels are a good choice if you haven't got much to spend. They're heavy but still a decent way to make your bike disc compatible.
The Rigida Zac rims have been keeping budget and mid-price bikes rolling for years, so we have no worries about longevity. The machined braking surfaces mean you can use rim brakes too, although the fairly narrow 25mm rims won't support super-wide tyres.
Thirty-six plain gauge spokes front and rear thread into rim eyelets to give extra strength, although we needed to tweak them slightly as they settled in after a few rides. The unbranded disc hubs aren't the smoothest rolling models around, but they're fully serviceable and the bearings themselves are well hidden by metal and rubber seals.