@blackperl there is a saying "U will get what u paid for"
1. A tripod is good to keep your cam stable from one place to other (u cant move a stool or ur car bike everywhere for support)
2. Never ever leave ur cam alone on a cheap tripod...keep the strap around neck when using tripod....u can live free only if u had spent 10-12k on a good manfrotto tripod.
3. Yes like blackperl said dont extend the middle rod much...its very unstable that way....bend a little to compose