Nebula's first non-EP, full-length release, To the Center is another retro-psychedelic heavy rock platter, long on stripped-down riff muscle and surprisingly technically adept guitar jams. The results sometimes meander, which probably isn't of much consequence if this brand of metal is your bag, since this is what you'd expect in this perception-expanding context. What matters more than tightly structured songs are riffs and atmosphere, and both of those are present in abundance. ~ Steve Huey, All Music Guide