Sorry to hear about your bad experience with the Terramite, mine was exactly the opposite.
It started within 2-3 seconds of me turning the key, so I think the one you got must have had some repair work needed. Only time it took me more time to start was when I ran it out of fuel /w3tcompact/icons/frown.gif
I also lifted buckets full of 3/4" crushed limestone (heaping) and moved them with no problem up and down hills. Even with the bucket raised it ran fine (I found out when I started coming here that you shouldnt travel with the bucket up, so I wont be doing that one again!)
You are right, it definately could stand to have a faster ground speed. I had a load of gravel delivered and told the guy to just dump it at the end of the road. By the end of the day, its was getting agravating to keep trucking it the other end of the road.
Having never run a backhoe other than the terramite, I cant compare it to anything else. It did do everything I asked of it, and very quickly. The short reach of the hoe is inconvient, but nothing in its class is any better. Gets annoying to dig a 3ft deep ditch, which takes about 2 minutes in my soil, then have to turn around, move it forward, turn back around, dig 2 minutes, repeat...repeat...repeat.
The model I used was a 5C as well, but I believe it had a 22 or 25 HP Kohler engine. Maybe that is the difference?