Here is a newer review, building on the the precedent (but dated) last review.
Earthrise Hotel is probably the easiest drawing engine to use. At 6 cards drawn for a single install, it is pretty efficient. The really best part about it is the fact it is neutral and can be used by any runner (excepted Apex).
Comparing the drawing of Earthrise to 1 cred save is a bit misleading (but still a valid comparison). Earthrise will allow you to draw into your econ pieces without using click, making your econ card that much more valuable.
Earthrise Hotel synergize well with cards like Paladin Poemu and Career Fair. Those allow you to install it for cheaper. It work nicely with Street Peddler, let you mill your own deck even faster to get your combo pieces.
Here are the competitors to Earthrise Hotel. For comparison, let remind ourselves that Earthrise Hotel give 6 cards for 4 credits, over 3 turns.
Professionnal Contacts. Gaining a credit for drawing is incredible, letting you setup your econ as you draw through your deck. The 5 credit for install hurt a lot. Also, it is not clickless.
Blockade runner. Let you choose the best two of three card drawn. Really, no, just no. Best avoided in favor of Class Act.
The Class Act. 4 cards drawn for 4 credits. After, let you choose the best of two card drawn, once per turn. Best of all, the card are drawn out of turn, giving you some protection against card like Punitive Counterstrike. This card synergize wonderfully with Earthrise Hotel, because it allow you to choose the 2 best of 3 cards each turn.
Drug Dealer. Draw 1 card out of turn for 1 credit in turn (or 0 credit, if you do not have creds). Simply amazing, because it never stop. But the drain on you econ is real. This will basically negate a Rezeki or Data Folding to mitigate.
Sports Hopper. 3 cards drawn instantly (for 3 creds). While not used, give +1 link. If you install it with Az or with The Artist, it give the same value as Earthrise Hotel.
Zer0. Lose a card in hand to gain a cred and two cards once a turn. Work well with Anarch because of heap breaker. Losing a card is still a bummer.
There are event that can also be compared.
Diesel. Draw 3 card for 0 creds. Combine well with Earthrise to get click compression through drawing.
I've Had Worse. Draw 3 card for 1 creds. Provide some protection against damage. Combine well with Earthrise to get click compression through drawing.
Blueberry Diesel. Draw 2 card for 0 creds, but choose the best of two for the first card. Combine OK with Earthrise to get click compression through drawing.
Fisk Investment seminar. Draw 3 card for 0 creds, force the corp to draw 3 also. Combine well with Earthrise to get click compression through drawing. Dangerous because it give tempo to the corp.
At 4 credits to install, it is a significant hit on the runner. In a deck with lots of economy cards, it is well worth it. Using cards that allow you to install it cheaply is also a good idea. But drawing 2 cards clicklessly will give the runner load of options and allow the runner to make more runs and to put more pressure on the corp. Well worth the slot in a runner deck.