I have been using the $120 aluminum version from harbor freight for over 2 years now.. no issues.. I keep wanting to upgrade it to a more expensive model..but this one just keeps doing the job. I check the bolts and connections frequently, anything from HF is suspect in these areas, but so far ... zero issues. It has a ramp, I would think the tilt versions would be steep ,, plus throw in some uneven ground and you could be in for a real push to get that thing past the tipping point.
We are enmeshed in the cancerous discipline of "security." And in the worship of security we fling our lives beneath the wheels of routine - and before we know it our lives are gone.