We had the manual stabilizer jacks for 18 years and really never had a problem with them. With our new Jayco HT we have electric stabilizer jacks and I find them to be a little slower than the manual ones, at least when I was younger, but I like them. One nice thing about the ones we have, and you would probably get the same type, is the ability of each stabilizer to contact the ground and stop to let the other one "catch up". When using manual ones, it was sometimes a little bit of a challenge to get the jacks the right height.
2012 GMC 2500HD D/A Crewcab
2012 Jayco Eagle SuperLite HT 26.5 RLS
2009 Crestliner Superhawk 1900
2013 Polaris Sportsman 550 EXP
2008 Polaris Sportsman 700 X2