With the new release of Custodes and Sisters of Silence rules, there's a lot of new things that can be tried. Sisters of Silence, a unit that was viable but a bit lackluster due to lack of transport options, became vastly more useful with the ability to take Rhinos, and a large increase to the radius of their ability. (Being locked into a single weapon type is a disappointment, but one that I can live with, especially since the sword variety is now 1ppm cheaper.)
Custodes, though... They got better, but differently. It's the same statlines and the same gear, but they now have a built in 5++, and their Deep Strike is far, far more reliable - Only scattering d6", and re-rolling bad results if they do still suffer a mishap. Their Land Raider is vastly better than a regular Raider as well, getting a 5++, BS5, and freakin' Venerable to all-but guarantee it won't explode and help considerably with being glanced to death, for a mere 25 point increase.
The question is... Are they worth it yet? They're definitely going to put most Terminators out of business, but the niche that they fill (extremely durable melee units with mid-strength AP2 at volume) just doesn't seem like a particularly valuable one. They can shake down just about anyone for their lunch money except the toughest invuln-based Deathstars, but those invuln-based Deathstars were just about the only viable close combat units to begin with, and at 50ppm with a mandatory 10pt captain upgrade (plus the cost of any Storm Shields or whatever else you take) these guys are going to be taking up a huge chunk of your army.
So what are your thoughts? Are they worth the cost?