so, is there a consensus on this tool? where do we stand on this - the tool is being shipped - has anyone already used it and if so, how are the results?

obviously, there is a tool kit - is there a list of the parts needed for this job? the necessary parts for the valve job, and maybe a list of parts for other, optional (or, maybe not so optional) jobs, like that pipe that is buried somewhere deep in the engine...

if i am not an engine DIY type of a guy, is there a possible rental option of the tool? how much time should be expected to be spent on this job (based on time and labor rates, one can estimate the labor cost)?