You could do a lot worse than Lyngdorf on the current market, now that Meridian no longer offer a surround processor (which I still think is tragic).

I had an extended demo of a TDAI-3400 for a whole afternoon a while back, and it was impressive sound quality for a standalone unit, with amps built-in, at the asking price.

I had a chance to re-run Room Perfect a few times, with the speakers in slightly different positions (including as recommended by Lyngdorf with them up against the wall). This produced variable results each time we re-ran the measurements. According to Lyngdorf, RP is supposed to learn the room, and so basically remove it from the equation. However, it sounded different each time, which left me in some doubt as to what it was actually doing. Things sounded at their worst with Lyngdorf’s recommended placement of speakers against the wall, and best where the speakers would be ideally placed if one were using no correction.

Two channel only, though, and multichannel makes a big difference with things like room correction.

HC: 861v4/ID40/LPS, DSP5000, DSP5000VC, DSP3100, SW1600, HD621, Oppo BDP-105, Sony VPL-HW55ES
2-Channel: Oppo BDP-105, TEAC VRDS-7/Trichord Clock 3/PSU, 551, Quad 303, Harbeth Compact 7ES-3, Kimber cables, Russ Andrews mains and supports.
Previous Meridian: 5000C, 5200SL, 7200.2, 6000, 562V.2, 568.2mm, 800v4, 808.2i, 818v2/v3, 861v8, 502