Sounds promising. How do you find getting in and out with the 90 degree hip knee thing they keep banging on about.
I must admit in the early days I was quite apprehensive about the possibility of dislocation due to over articulation. I do have the advantage of being married to a Physiotherapist so I was forced to exercise regularly to tauten up musculature post-op. It obviously pays to be cautious but in general I think it's difficult to do any damage provided you don't push the pain threshold
While my op was very successful it did have to be done twice. While in theory still convalescing I was up a step ladder and in descending missed the bottom rung, so my foot went down heavily on the ground and the jolt pushed the femoral component further into the bone (and yes, it did hurt!). This meant my left leg was now half an inch shorter than the right. After going round in circles for some time the consultant agreed the problem was not going to self-correct and so replaced just the femoral 'spike' with a larger one - problem solved. I think the moral I'm trying to convey is don't do too much jumping up and down in the early days.
With regular non-impact type exercise you should be back in the driving seat very soon - best of luck.