Coming off the Medveďovský Bridge from the Slovak side, the options are a main road on which cycling is not allowed (Route 14 which is 6km to Gyor,) or a bike route which is 27km to Gyor. We went about 200 metres on the bike path, then cut south on a track through some sunflowers, beside a tourist sign, which joined onto a small road not long after. We were then able to pick our way on some minor roads to get to Gyor without spending 27km doing it.
EuroVelo 6, in some places between Gyor and Komaro, was mud. It rained the day we did this section , and it was barely passable. We got bogged down a couple of times, and the brakes were trashed. It would be impossible on a narrow-tyred road bike in the wet.
Some sections (particularly south of Budapest) run atop flood dykes, and the surface is loose gravel or packed dirt. Again, this would be a challenge in the wet on a road bike. The scenery here was monotonous and the weather was very hot in July when we were here. These type of routes have no shade and no rest areas.
Some of the route between Komarno/Komarom is on a main road. Tarmac is banked up on the sides, so hugging the edge of the road isn’t always possible. When they are able, drivers always gave lots of room and used indicators to signal overtaking. But when there were cars coming in the opposite direction, drivers tended not to wait behind, and would instead pass leaving very little room. They drive REALLY fast. It was a quite a busy, narrow road around Visegrad.
In general the EuroVelo is badly signposted. Some of the signs are a bit ambiguous and unclear, and it can be difficult to know if you’ve gone the wrong way or if the signs have just stopped. GPS tracks if you are following the Eurovelo would be necessary to avoid getting lost.
Campsites ran the gamut. One (in Dömös) had good facilities, lovely pitches, a restaurant on site (closed on Wednesdays though, when we were there!) and a washing machine, as well as a swimming pool to use for an extra charge. At the other end of the scale was a campsite in Dunaföldvár. It was grim. Dirty, no hot water, dog shit on the camping field, a weird smell in the toilets. But it was only 9 Euro.
Prices in Hungary were lower across the board than in Belgium/Germany/Austria, but other than for beer, it wasn’t as low as you might expect, maybe 10%.