I agree to "personal choice" regarding the putters, also in real golf.
Still I have a reason to state this rule of thumb, "no putter below 500 credits".
My own experience is that my putting skills were feeble when the 400 crs Spider became available. I remember using a free rental weekend a month or two into my play and coming out without a selection: My skills (the guy holding it) did not allow for any advantage of the custom putters above the Starter. Four months later I repeated that feat with Ghost Spider, 2x Redwood, Nike and Daytona (must of been above lvl 72 then) only to select the latter - this selection applies to me but not the conditions of the rental.
To this date I'm convinced that the Spider is bettered by the Rossa, only for a player being used to certain scales, it may lead to preferrance of the former. Any player should consider the putters mentioned above instead of jumping on this "early bird".
To be honest, I deem those 400 crs being wasted.
I'm of the opinion that the Starter putter may be the best club in the free equipment for those who missed the "Beginner". There are certainly more important clubs to replace before attacking it - wedges, 3WD in the first place. Nevertheless, I doubt that any Legend would prefer it to a custom putter, it loses too much precision ("balance") in the long range, and there are some comfortable scales missing (15 yds, 90 yds). This was confirmed by quite a few fellow players in the "Uneven lies challenges".
Anyway, to each his own, ev1 has to find his way through the game and the site.
And, most important, Have fun! & Hit it straight!