+ Schoolgirl Uniform. Muh Wifu.
+ Awesome Artwork
+ Standard 45/15 on card limit/influence limit
Shakedown on other Shaper identities
Perhaps the most obvious comparison, and one of the most interesting. Mac is somewhat slowed by poor synergy with common, powerful shaper cards. Scavenge, Test Run, Personal Workshop, Code Siphon, The Supplier although functional, don't make the most of Mac's ability in all scenarios. Mac also only works with Programs and Hardware.
Haley can make perfect use of Personal Workshop, Self-modifying Code, or Clone Chip, on a run, and combo it her ability and with Autoscripter to boot. Test Run still allows for a saved click, as does The Supplier Replicator see excellent synergy as well.
On the other hand, everything is more expensive to install for Hayley with no install cost reduction. Mac also starts with 1
Chaos Theory: Wünderkind can setup a Shaper rig fast, by using a reduced deck size without sacrificing overall influence. CT's extra +1 is a nice bonus as well, allowing for some larger program rigs without needing additional MU cards.
Hayley by contrast doesn't start with any MU bonuses, or lower variance but instead gains free install clicks over the course of the game. I suggest that whether you don't install a card at all, or have to search for it (CT) versus installing at a reduced penalty (Hayley) will be a choice of preference.
Rielle "Kit" Peddler: Transhuman has her own play style. The comparison is too nuanced since Kit relies on Ice subtype abuse at a greatly reduced influence. I would only suggest that Hayley lends herself to more playstyles than Kit.
The Professor: Keeper of Knowledge is a influence identity, taking more from other factions. Like Kit, the Professor lends himself to a particular play style.
Exile: Streethawk is very similar to Hayley, his ability also provides click conservation during installs. Many of the windows of when his ability triggers also trigger for Hayley, although he gains a draw rather than an install, and he only triggers on program installs.
Exile does start with 1 , and has the same deck size/ influence limit, but without any additional "install a program from the heap" released, his ability is perhaps more difficult to trigger. I suspect many fans of Exile will enjoy Hayley.
The money's still out on Nasir Meidan: Cyber Explorer in my opinion. Like Mac, he provides a bonus econ boost, and like Kit he can pressure the corp to rez or orient ice in unusual situations. However, he requires particular setup, and many of the Lunar Cycle cards released provide significant counters to his play style.
Conclusion and Other Thoughts
Hayley supports a diverse play style supporting single type card decks, and provides support to one of the general weakness of shaper: slow rig building. Resource efficiency I think is the most novel addition to the faction, although she supports all installed cards. Hayley supports the basics of Shaper, without particularly specialized requirements.
I enjoy the overdraw turn (perhaps with Diesel or Quality Time) where I can reduce my grip to it's limit by playing two cards at once. Previously this could be done with cards like Modded, but Hayley allows this to be done with any two cards of the same type as well.