Okay, so I've been using this flexible funnel for half a year now across 4 different vehicles (my truck, wife's SUV, and two motorcycles). Here's the real deal:
First off - the flexibility is LEGIT. I can twist this thing into crazy shapes to reach those awkward oil filter spots. No more oil dripping on my driveway like some amateur mechanic!
Durability surprised me. After multiple oil changes and being stored rolled up in my messy toolbox, it still looks new. Just wipe it down with a rag and it's good to go.
PRO TIP: It works amazing for lawnmower oil changes too! No more grass stains from spilled oil.
Only complaint? The edges could be a bit thicker. Sometimes oil tries to creep around the sides if I don't position it perfectly.
Final verdict: For under $20, this thing has saved me hours of cleanup time and countless curse words. 9/10 would recommend to any DIY mechanic.