Disagree Tim.
I would not buy one as I use tools a lot and would rather have a pro unit. For 98% of those buyers it is used to change say five wheels a year and that tool will be well up to that job.
Spending £300 for a pro unit is a waste of money for infrequent use buyers.
I am with you Eddie, like you the regular use tools have to be good quality because of how often I use them, some of my kit is over 40 years old and is as good as new because its quality made. Some is tatty after a few years of use as its cheaper quality. The thing is, as you say, its all about frequency of use and need for accuracy. Of course if you can afford (and have the need to own) the latest Snap On wangle-fangle wrench then fine, its your money and your choice but I have seen an awful lot of tool kits where there are trays of beautiful spanners that have never been introduced to a bolt. If its a once or twice a year job at my age I buy something that will do the job and be safe to use, if it does not have to be accurate to a few thou then its good enough. As I was explaining to someone from here on Saturday when fitting his kingpins the reamer is a critical piece of kit, I could have bought a fixed cheapo reamer that once used starts cutting undersize and after 20-30 sets cuts no where near what it should or I could spend many hundreds of pounds on a spiral fluted adjustable that can and is reground every 20 sets of pins. As I charge owners to do this and of course we both want a quality job I chose the latter, however, to strip the car down I use a technique involving 2 'Mole' grips. One is a genuine Snap On 'Vice Grip' and cost a lot of money, the other is a cheap but totally adequate copy that cost less than £5. Horses for courses and all that. I have looked at the wrench you linked to and to be honest I would not buy it, not because its cheap but because its mains powered. I have a compressor in the garage and full set of air tools so it adds little or no advantage, had it been 12v powered and suitable for carrying in the tin-top then I would have bought one as that would help with roadside wheel changes, it adds value and convenience (I hope this makes sense?). I have a garage Snap on Roll Cab, Top Box and several ancillary boxes full of little used quality tools as it is, I also have some very useful Lidel and Aldi 'once in a blue moon' tools that do their job to my total satisfaction. One example used at the weekend was a £25 angle grinder bench stand that is used to convert my cheap Aldi angle grinder into a chop saw, the quality Bosch angle grinder is kept for more accurate/frequent work. Its all about usage and need for me.
