So my sturdy (or so I thought...) Graco Vivo's front wheel snapped today. In the rain. While crossing a road. About 15 minutes walk from home. After getting DS's MMR jab. AGGGGH! But I can't get a replacement wheel before Sunday and I need a new buggy before then. Was looking at the Silver Cross FIzz, anybody know if it is reliable/sturdy? Bearing in mind that DS pretty big for his age (15mo) and that we do a LOT of walking (no car). Typical week is walking to and from creche (45 mins each way) 3 days, to and from work twice (half hour each way) plus the usual walks to park etc. Thought the vivo wa so sturdy, looked like a tractor! Obviously not:(